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1. |
Simplify the expression 3(5x + 9 - 4x). |
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A. |
13x |
B. |
30x |
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C. |
27x + 27 |
D. |
3x + 27 |
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Hint |
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2. |
Find the difference 15 - 26. |
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A. |
11 |
B. |
-41 |
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C. |
-11 |
D. |
41 |
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Hint |
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3. |
Find -10.75 - 2.25. |
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A. |
-8.5 |
B. |
8.5 |
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C. |
-13 |
D. |
13 |
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Hint |
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4. |
Ten test scores from Mrs. McDaniel's mathematics class are 100, 95, 93, 86, 82, 80, 78, 77, 75, and 75. She calculates the mean, median, and mode of the scores. An eleventh student takes the test with a score of 62. Mrs. McDaniel recalculates the mean, median, and mode of the test scores. Which measure changes the most when the eleventh score is included? |
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A. |
The mean, median, and mode change equally. |
B. |
mode |
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C. |
median |
D. |
mean |
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Hint |
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5. |
An equation that is true for every value of the variable is called a(n) ______. |
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A. |
equivalency |
B. |
representation |
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C. |
identity |
D. |
empty set |
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Hint |
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6. |
A ratio that compares a number to one hundred is called a(n) _______. |
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A. |
hundredth |
B. |
percent |
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C. |
scale |
D. |
cross product |
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Hint |
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7. |
One dice is rolled. Find the odds that a number less than 3 is rolled. |
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A. |
1:3 |
B. |
0:1 |
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C. |
1:4 |
D. |
1:2 |
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Hint |
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8. |
Graphs that have at least one characteristic in common that makes them different from other groups of graphs are called _________. |
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A. |
a family of graphs |
B. |
positive graphs |
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C. |
identity graphs |
D. |
reciprocal graphs |
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Hint |
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9. |
The graphs of the equations y = –2x – 3 and y = –2x + 3 are a family of graphs because _________. |
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A. |
the slope of each line is –2 |
B. |
the y-intercepts are opposites |
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C. |
both equations are solved for y |
D. |
both slopes are negative |
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Hint |
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10. |
Simplify the expression  |
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A. |
310 |
B. |
34 |
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C. |
16 |
D. |
36 |
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Hint |
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11. |
Find the sum. |
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A. |
-3b3 - b2 - 3b |
B. |
-3b3 - 3b |
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C. |
-3b3 - 3b + 1 |
D. |
-3b3 + b2 - 3b |
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Hint |
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12. |
Find the product (2z - 5x)2. |
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A. |
4z2 + 25x2 |
B. |
4z2 - 20zx + 25x2 |
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C. |
4z2 - 25x2 |
D. |
4z2 - 25x2 - 20 |
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Hint |
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13. |
Kendrick has been saving his money. He started out with $55.00. After one week he had $70.00. After another week he had $85.00. After a third week he had $100.00. How much will he have after five weeks? |
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A. |
105 |
B. |
130 |
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C. |
115 |
D. |
120 |
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Hint |
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14. |
Find the difference -2 – (-4). |
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A. |
-2 |
B. |
-6 |
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C. |
6 |
D. |
2 |
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Hint |
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15. |
Choose the solution of 8 –  = 6 if the replacement set is {2, 4, 6, 8}. |
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A. |
6 |
B. |
8 |
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C. |
4 |
D. |
2 |
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Hint |
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16. |
Solve the equation -4.8 + k = -3.6. |
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A. |
-1.2 |
B. |
8.4 |
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C. |
-8.4 |
D. |
1.2 |
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Hint |
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17. |
The chart shows the amount of time Janette spends on each activity in her day. What percent of the time is Janette sleeping or socializing? Round to the nearest tenth of a percent if necessary. |
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A. |
29.2% |
B. |
54.2% |
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C. |
37.5% |
D. |
8.3% |
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Hint |
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18. |
Joseph and Pedro are selling chocolate bars at the concession stand at a school football game. There are two types of chocolate bars, with nuts and without. They sell 36 of the ones with nuts and 54 of the ones without and make a total of $44.10. If the chocolate bars with nuts cost ten cents more than the ones without, how much did the chocolate bars with nuts cost? |
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A. |
$0.55 |
B. |
$0.49 |
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C. |
$0.59 |
D. |
$0.45 |
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Hint |
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19. |
Express 8 micrograms in scientific notation. |
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A. |
8 × 10-6 grams |
B. |
8 × 109 grams |
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C. |
8 × 106 grams |
D. |
8 × 10-9 grams |
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Hint |
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20. |
Simplify  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
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Hint |
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