Unit 5 Review

Which quantity could go in the blank to make the equation below true?

x + 2x + __________ = 5x

• 2

• 3

• 2x

• 3x

Evaluate:

36y + 9 when y= 1/6

• 14

• 15

• 51

• 225

Which two expressions are equivalent for any value of y?

• 3(3y + 3) and 6y + 6

• 3(3y + 3) and 9y + 6

• 9(y + 3) and 12 + 9y

• 9(y + 3) and 27 + 9y

Evaluate:

(2³ - 2²) x 4 - 3²

• 4

• 6

• 7

• 9

What is the value of the expression below when c=5 and d=4?

6c² - 5d + 8

• 48

• 79

• 138

• 888

Which expression represents a "number, x, decreased by the sum of 2x and 5"?

• (2x + 5) - x

• x - (2x - 5)

• x - (2x + 5)

• (x + 2x) - 5

Which pair of expressions is equivalent?

• 4(6x) and 10x

• 4(6x) and 24x

• 4x + 6x and 10x²

• 4x + 6x and 24x

Which expression is equivalent to 5(d + 1)

• 5d + 5

• 5d + 1

• d + 5

• d + 6

Which expression is equivalent to 16a + 24b?

• 4(4a + 20b)

• 8(2a + 3b)

• 4a(4 + 6b)

• 8ab(2 + 3)

Which expression is equivalent to the expression below?

g + g + g + g + g + g

• 6 + g

• g⁶

• 6g

• g/6