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1. |
The cost of admission to a science museum is 12a + 5c, where a represents the number of adults and c represents the number of children. How much would it cost for 2 adults and 3 children to go to the museum? |
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A. |
$27 |
B. |
$46 |
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C. |
$22 |
D. |
$39 |
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Hint |
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2. |
If Julie has x strawberries in one sack and four fewer strawberries in another sack, write an expression for how many strawberries are in the second sack. |
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A. |
x - 4 |
B. |
x + 4 |
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C. |
4 + x |
D. |
4 - x |
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Hint |
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3. |
A CD rotates in a CD player at about 350 revolutions per minute. How many revolutions would the CD have made after h hours? |
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A. |
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B. |
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C. |
350h |
D. |
21,000h |
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Hint |
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4. |
Find an explanation for the expression s + 3. |
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A. |
If s is the number of students in the classroom, s + 3 is the number of students after 3 new students join the class. |
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B. |
If s is the number of sunny days, s + 3 is the number of sunny days in March, the third month of the year. |
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C. |
If s is the number of students in the classroom, s + 3 is the number of students after 3 students leave the class. |
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D. |
If s is the number of sunny days, s + 3 is the number of sunny days 3 years ago. |
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Hint |
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5. |
Find two ways to write the rule for the table. |
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A. |
3(x + 4), 3x + 15 |
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B. |
3(x + 4), 3x + 12 |
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C. |
15x |
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D. |
3(x + 12), 3x + 36 |
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Hint |
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6. |
Use the clues on the dot diagram to find the unknown values. |
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A. |
a = 3, b = 15 |
B. |
a = 1, b = 11 |
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C. |
a = 5, b = 17 |
D. |
a = 10, b = 22 |
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Hint |
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