expressions/equations post test review

Simplify 2n + 5n - 6 + 4n

• 11n - 6

• 5n

• 7n - 2n

Simplify $\frac{1}{2}\left(4a\ +2\right)$   

• 8a + 4

• 2a + 1

• 8a + 2

• 2a + 2

Which expression is NOT equivalent to -4(8n - 3)?

• 5 - 9(8n - 3)

• 4(3 - 8n)

• -32n - 12

• 2(-16n + 6)

Jordan's dog weighs P pounds. Emmett's dog weighs 25% more than Jordan's dog. Which expression DOESN'T represent the weight, in pounds, of Emmett's dog?

• P + 1.25

• 1.25p

• P + 0.25p

Every flavor of cookie at Snookie's Cookies cost C dollars a piece. If Armany buys 3 chocolate chip, 12 snickerdoodle, and 7 oatmeal cookies, which expression represents his total cost?

• 3c x 12c x 7c

• 3 + 12 + 7

• 22 x c

• 22 + c

A store pays two fees when a customer uses a credit card to make a purchase. These fees include: a flat fee of $0.15 and a processing fee equal to 1.75% of the dollar amount of the purchase. There is no sales tax on the purchase. How much does the store pay in fees for a $60 purchase?

• $1.05

• $61.20

• $61.90

• $1.20

A toy store is having a sale on puzzles. For each puzzle Naomi buys she gets 75% off a second puzzle. The original price of a puzzle is $16.60. How much would 4 puzzles cost?

• $41.50

• $49.80

• $64.90

• $58.10

Solve. 5n - 7 = 3

• n = 0.8

• n = 2

• n = 5

• n = 50

 $-\frac{3}{4}n\ +8=23$  

• n = 41.33

• n = 20

• n = -11.25

• n = -20

A coach buys a uniform and a basketball for each of the 15 players on the team. Each basketball costs $9. The coach spends a total of $420 for uniforms and basketballs. Enter the cost, in dollars, of 1 uniform.

• $285

• $17.50

• $19

• $135