Topic 4 Review

The price of cheese, c, is $4.99 per pound. The price of salami, s, is $6.49 per pound.

Write an expression to represent the total price.

• 4.99c + 6.49s

• 6.49c + 4.99s

• 11.48

• 4.99 + 6.49

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

Take your time to write out your work on paper!

• 4x + 7

• 15 + 4x - 8

• 19x - 38

• 4x + 13

Find the sum:

(3x + 8) + (4x − 3)

5x + 12 burgers were sold yesterday and 6x − 5 were sold today. What is the total number of burgers sold?

• 11x + 17

• 11x + 7

• 20x

• 17x + 1x

Which expression is equivalent to:

(4x - 12) - (6x + 2)

• 4x - 12 - 6x - 2

• 4x - 12 - 6x + 2

Which property allows you to reorder the terms in an addition or multiplication expression?

• Associative Property

• Commutative Property

• Distributive Property

• Identity Property

Which property allows you to regroup the terms in an addition or multiplication expression?

• Associative Property

• Commutative Property

• Distributive Property

• Identity Property

Subtract and simplify the expression.

(8x + 7) − (12x + 10)

On Saturday, Bob ran 3x - 6 miles. On Sunday, he ran 2x - 8 miles. What is the difference in miles ran?

(3x - 6) - (2x - 8)

• x - 14

• 5x - 14

• x - 14

• x + 2

A store offers 10% off all items, and x represents the original purchase price.

Which TWO expressions represent the sale price.

• x + 0.10x

• x - 0.10x

• 1.10x

• 0.90x