Unit 3 Review 2019-20R

• 72

• -72

• 2

• -2

Simplify the algebraic expression.

2(x+2)+7(x+4)

• 9x + 32

• 9x + 6

• 11x + 6

• 2x + 4

What is the simplified expression that represents the perimeter of this triangle?

• 5x + 8

• 10x + 24

• 33

• 6x + 8

A pentagon has a total perimeter of 25x + 10. Which expression represents the length of one side of the square?

• 5(5x + 2)

• 5(5x + 5)

• 5x + 2

• 5x + 10

Which expressions are equal?

• 4 + 2(x + 1) and 2x + 2

• 2(x + 3) + 5x and 5x + 5

• 4(x + 3) + 2x and 6x + 12

• 5x + 2(x + 7) and 15x + 21

Write the solution set for -4x > 36

• x < -9

• x > -9

• x < 9

• x > 9

Dabney wrote the expression 5(y + 3) + 8 to show the amount of money 5 friends paid for popcorn. Which expression is equivalent to the one Dabney wrote?

• 5 ● y ● 5 ● 3 + 8

• 5 + y + 5 + 3 + 8

• (5 ● y) + (5 ● 3) + 8

• 5 ● y + 5 ● 3

Find the solution.

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The Nanny has $1,000 in her checking account. She wants to spend part of her money on a new TV. She wants to have at least $50 left in her checking account after buying the TV. Which inequality can be used to find c, the amount the Nanny can spend on the TV?

• c + 1,000 ≤ 50

• c + 50 ≤ 1,000

• c + 50 ≥ 1,000

• c + 1,000 ≥ 50

What is the value of x if 1/2 x=8

• x = 8.5

• x = 1/4

• x = 4

• x = 16