Generating Equivalent Expressions

Simplify the expression: 3x + 2x - 5x

• -6x

• -4x

• 0

• 10x

Simplify the expression: 4(2x + 3)

• 8x + 12

• 8x + 9

• 8x - 12

• 8x + 6

Simplify the expression: 2x + 5 - 3x + 7

• -x + 19

• -x + 2

• -5x + 12

• -x + 12

Simplify the expression: 3(2x - 4) + 2(3x + 1)

• 12x - 6

• 6x - 10

• 6x + 10

• 12x - 10

Simplify the expression: 5x - 3(2x + 4)

• -x - 8

• -x - 12

• -x + 12

• 7x - 12

Simplify the expression: 2(3x - 5) - 4(2x + 1)

• -2x - 14

• -2x + 14

• -6x - 14

• -2x - 6

6 (x + y + 7)

• 6x + 6y + 42

• 12xy + 42

• 6x + 6y + 7

• 6x6y + 42

A shoe store is throwing a sale for 25% off all shoes. Which of the following expressions DOES NOT represent the sale price of the shoes?

• x - 0.25

• x(1 - 0.25)

• 0.75x

• x - 0.25x

A store charges a 8% sales tax on all purchases. Which of the following represents the cost of a purchase after tax?

• 0.8x

• 0.08x

• x + 0.8x

• x + 0.08x

A jewelry supply shop buys silver chains from a manufacturer for c dollars each, and then sells the chains at a 40% markup. Write an expression for the retail price of a silver chain.

• .6c
• .4c
• 1.4c
• $40

Tags

CCSS.7.EE.A.1

CCSS.7.EE.A.2

CCSS.7.EE.B.3

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3