Chapter 8 Review

Simplify

5x + 3 - 2x

• 3x - 3

• 3x + 3

• 7x + 3

• 8x - 2

-6k + 7k=

• k
• -k
• 12k
• -12k

-r -10r

• 11r
• -11r
• 9r
• -11

-2x + 11 + 6x

• 8x+11
• 4x +11
• 4x
• 15x

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

What expression can you use to help you find the perimeter of this triangle?

• -6 + 8x

• 6x + 2

• 6x - 2

• 6x + 8

Which expression can you use to help you find the perimeter of this rectangle?

• 6x

• 16x

• 12x

• 8x

Which expression can help you find the perimeter of this triangle?

• 3x + x

• 4x + 6

• 5x + 6

• 6x + 6

A diagram of a fenced-in garden is shown. Which expression can help you find the amount of fence needed to surround the garden?

• 2x + 10

• 5x + 10

• 2x + 10

• 4x + 10

Which expression can help you find the perimeter of the rectangle?

• 2n + 2

• 4n + 4

• 2n + 4