Expressions Study Guide

What is 5³ written in expanded form?

• 5 x 3

• 5 x 5 x 5

• 3 x 3 x 3 x 3 x 3

• 3 x 5

What is the value of 5 + 3³ x 4?

• 113

• 41

• 32

• 128

Which expression represents 5 minus the product of 3 and a number h?

• 3h - 5

• 3 - 5h

• 3 - (3 + h)

• 5 - 3h

It costs 40 dollars per month for cell phone plus 12 dollars for every GB of data. Which expression can be used to represent the cost of a cell phone bill when x is the number of GB of data used?

• 40x + 12

• 12x + 40

• 40 + 12

• 12x + 40x

Thomas rides his bike a total of 936 miles over m days. If he rides the same distance each day, which expression shows how many miles he rides the bike each day?

• 936 + m

• 936 x m

• 936-m

Which expression has three term when simplified?

• 3 + x + x - y

• 3xy

• 3x + x + y

• 3 + xy

What mathematical term describes both 7.1 and 9.4 in the expression

7.1a - 9.4b + 15.6

• term

• constant

• coefficient

• sum

What is the value of the expression

6(b - 5) + 4b when b = 5.3?

Hint: Distribute first. Then, simplify the entire expression by combining like terms. Then, substitute to evaluate when b = 5.3

• 11

• 15.8

• 18

• 23

Student are visiting a planetarium. There is a cost of $60 for group viewings of the show and a cost of $3 per student.

How much will it cost for 40 students to attend the show?

• $60

• $100

• $120

• $180

Which expression is equivalent to

7a + a + 8 + 3b + 4 + 9b

• 8a + 12b + 12

• 12a + 8b + 12

• 8a + 12

• 32ab