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1. |
Simplify 6a + 15a. |
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A. |
6a + 15a |
B. |
42a |
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C. |
21a2 |
D. |
21a |
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Hint |
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2. |
Solve 15 + a = 10. |
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A. |
a = -25 |
B. |
a = -5 |
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C. |
a = 25 |
D. |
a = 150 |
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Hint |
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3. |
Find the median of {55, 21, 47.4, 69, 71}. |
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A. |
47.4 |
B. |
21 |
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C. |
55 |
D. |
71 |
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Hint |
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4. |
An antique car was purchased for $7400 and is now worth $10,600. What is the approximate percent of change? |
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A. |
30.19% |
B. |
69.81% |
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C. |
50% |
D. |
43.24% |
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Hint |
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5. |
Which pair of lines graphed below are parallel? |
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 |
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A. |
l and m |
B. |
l and n |
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C. |
k and n |
D. |
k and m |
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Hint |
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6. |
Find the difference (-7x4y2 – 3x2y + 2xy2 – 5) – (4x4y2 – xy2 – 5). |
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A. |
-11x4y2 - 3x2y + 3xy2 |
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B. |
-3x4y2 - 4xy2 + 2xy2 - 10 |
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C. |
-11x4y2 - 3x2y + 3xy2 - 10 |
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D. |
-11x4y2 - 3x2y + xy2 - 10 |
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Hint |
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7. |
Factor 3x3 + 2x2y + 3xy2 + 2y3 |
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A. |
xy(3x2 + 2x + 3y + 2y2) |
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B. |
x2(3x + 2y) + y2(3x + 2y) |
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C. |
(x2 + y2)(3x + 2y) |
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D. |
(3x + 2y)(x + y)(x - y) |
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Hint |
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8. |
Factor x2 – 8x + 16. |
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A. |
(x - 4)2 |
B. |
(x - 8)2 |
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C. |
(x + 4)(x – 4) |
D. |
(x + 4)2 |
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Hint |
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9. |
What is the equation of the graph shown? |
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A. |
f(x) = 2x2 + 2x + 1 |
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B. |
f(x) = -2x2 + 2x - 1 |
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C. |
f(x) = 2x2 - 2x + 1 |
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D. |
f(x) = -2x2 + 2x + 1 |
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Hint |
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10. |
State the excluded values of x in the expression  . |
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A. |
 or - 3 |
B. |
 or 3 |
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C. |
, 3, or 4 |
D. |
 |
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Hint |
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11. |
Express  in simplest form. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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12. |
 |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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13. |
The circle graph shows the percent of Ms. Jackson's students who earned an ''A'' for each of the four grading periods during a school year. If Ms. Jackson taught 150 total students, how many students earned an ''A'' during the second quarter? |
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A. |
60 |
B. |
15 |
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C. |
48 |
D. |
27 |
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Hint |
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14. |
Rico took a survey to find out the number of family members in each of his classmates' households. The results of the survey are shown in the graph. How many more students said they have 4 family members in their household than 5? |
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A. |
10 |
B. |
5 |
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C. |
20 |
D. |
15 |
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Hint |
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15. |
Solve t – 32 = 96. |
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A. |
t = -64 |
B. |
t = 64 |
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C. |
t = -128 |
D. |
t = 128 |
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Hint |
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16. |
Use elimination to solve the system of equations given by 8x – 4y = -20 and 10x – 5y = 35. |
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A. |
(-12, -12) |
B. |
no solution |
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C. |
infinitely many solutions |
D. |
(0, 0) |
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Hint |
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17. |
A boat travels 30 miles upstream in 4 hours. The trip downstream takes 2.5 hours. Find the rate of the boat in still water. |
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A. |
2.25 mph |
B. |
6.92 mph |
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C. |
9.75 mph |
D. |
9.23 mph |
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Hint |
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18. |
Find  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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19. |
Vince ran a marathon in 3 hours. What was his speed in feet per second? (a marathon is 26.2 miles) |
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A. |
12.8 ft/sec |
B. |
38.4 ft/sec |
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C. |
16.7 ft/sec |
D. |
768.5 ft/sec |
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Hint |
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20. |
Find  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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