Expressions HW (Due Fri, 9/16/16)

DO NOT write the questions; show your work and the answers.

1. Aaron has c cousins. Fiona has 5 more cousins than Aaron has. How many cousins does Fiona have?

A. c x 5
B. c + 5
C. c – 5
D. 5

2. The expression f x 12 gives the number of inches in f feet. What is the value of the expression when
 f = 4?

A. 3 inches
B. 8 inches
C. 16 inches
D. 48 inches

3. A florist brought flowers to a reception. She put 2³ flowers onto each of 8 tables. How many flowers did the florist place on the tables?

A. 64
B. 48
C. 40
D. 16

4. There are 8² chairs in the lunchroom. How many chairs are in the lunchroom?

A. 16
B. 64
C. 88
D. 800

5. The expression 3t gives the number of tickets won at a game if the ball goes through the hoop t times. How many tickets would a player get if he gets the ball in the hoop 16 times?

A. 6
B. 21
C. 48
D. 96

6. The length of a swimming pool is 5 feet shorter than twice the width. Let n represent the width. Which expression gives the length of the swimming pool?

A. 2n + 5
B. 2n - 5
C. 2(n - 5)
D. 2(n + 5)

7. Which expression has a value of 250?
A. 1 + 6 x 7 - 5²
B. 1 + 7 - 6 x 5
C. (7 + 6) x 5² - 1
D. (6² - 1) x 7 + 5

8. The expression 4c gives the science test score that a student receives for c correct problems. What is the score for 18 correct problems?

A. 418
B. 184
C. 72
D. 22

9. Carmen's family rents a boat at Big Lake at the rate described.
$200 per day                $4 for each gallon of gasoline used

Which expression gives the total cost of the day's rental if her family uses n gallons
of gasoline?

A. 200 – 4 n
B. 200 + 4 n
C. (200 + 4) × n
D. 200 n + 4

10. Sandwiches cost $5, french fries cost $3, and drinks cost $2. The expression 5 n +
3 n + 2 n gives the total cost, in dollars, for buying a sandwich, french fries, and a
drink for n people. Which is another way to write this expression?

A. 10 n
B. 10 n ³
C. 30 n
D. 30 n ³

11. The cost for a group of people to go to the movies is given by the expression 9 a +
5 b , where a is the number of adults and b is the number of children. What are the
coefficients of this expression?

A. 9 and 5
B. a and b
C. 9 a and 5 b
D. + and ×

12. An employee placed 2⁴ books onto each of 5 shelves. How many books did she place on the shelves in all?

A. 16
B. 80
C. 120
D. 245

13. Dana has n quarters. Ivan has 2 fewer than 3 times the number of quarters Dana
has. The expression n + 3 n −2 gives the number of quarters they have altogether.
Which is another way to write this expression?

A. 2 n ²
B. 2 n
C. 4 n ² – 2
D. 4 n – 2

14. Which expression has a value of 35?

A. 7 + (2² – 3) + 4 × 4
B. 3 × (7² – 4) × 4 + 2
C. 4² + 3 × (7 – 2) + 4
D. 2² × 7 – (4 + 4) × 3

15. The expression 500 v gives the number of points a player earns for completing v
voyages in a video game. How many points are earned for completing 8 voyages?

A. 508
B. 1,800
C. 2,500
D. 4,000

16. A chef uses roasted peppers for his salsa. He uses 3³ peppers in each of 5 batches
of salsa. How many peppers did the chef use in all 5 batches?

A. 135
B. 45
C. 32
D. 27