Expressions Review

Which expression is equivalent to –9(10.5 + 6m)?

• 94.5 + 54m

• 94.5 - 54m

• -94.5 + 54m

• -94.5 - 54m

What is the perimeter of the rectangle with length 13x - 7 and width 4x + 6?

• 9x + 3

• 9x - 3

• 34x - 2

• 34x + 2

A rectangle is shown. What is the perimeter of the rectangle?

• 5x - 10

• 10x - 20

• 5x - 6

• 10x - 12

Simplify the expression (–7x + 5.4) + (12x – 2.6)?

• -5x - 2.8

• 5x + 8

• 5x + 2.8

• -5x + 8

Which expression is equivalent to –3(p + 9) – 5(7 – p)?

• 2p + 62

• 2p - 62

• -8p + 8

• -8p - 8

Which expression is equivalent to (4 – 2k) – (7 – 7k) – (8 – 6k)?

• -15k + 19

• 11k - 11

• 11k + 11

• -15k - 19

A school store purchases mechanical pencils to resell to students. The pencils were purchased for $1.37 each. The store marked the pencils up 35% for resale. Students also paid a 7% sales tax. Which expression can be used to calculate the final cost students paid for the pencils?

• (1.37)(0.42)

• (1.37)(1.35)(1.07)

• (1.37)(1.42)

• (1.37)(1.35)(0.07)

The original price of a computer is $699.99. Suzie has a 25%-off coupon for the computer. A sales tax of 8% will be added to the sale price of the computer. Which expression would calculate how much Suzie will pay for the computer?

• $699.99(0.75)(0.08)

• $699.99(0.25)(0.08)

• $699.99(0.25)(1.08)

• $699.99(0.75)(01.08)

A rectangle is shown. What is the area of the rectangle?

• 16x + 4

• 16x - 4

• 32x + 8

• 32x - 8

Which expression is equivalent to the expression 7(-3n + 8) - 4(6n + 10)?

• -45n - 16

• -45n + 16

• -45n + 96

• -45n - 96