Chapter 7 Test Review

A _____________ is a symbol, usually a letter that stands for a number. 

• coefficient
• algebraic expression
• variable
• term

How many terms are in the given expression?
5² + 7n - 2f  

• 6
• 5
• 3
• 2

Which expression represents: "the product of 3 and x increased by 5"? 

• 5x - 3
• 3 - 5x
• 3x + 5
• 3x(5)

Solve: 3⁴

• 12

• 9

• 81

• 28

What is the coefficient of the following expression? 
7c + 8

• c
• 7
• 8
• 1

5² , in this example, 5 is the ______ and 2 is the _______

• base, product

• exponent, base

• base, exponent

• product, base

3k + 8 + 5 - 5k use k = 6

• 18

• 30

• 0

• 1

Four times a number increased by 5 is

• 5 + 4n

• 5 x 4n

• 5(4n)

• 4n - 5

Which operation would you do first in the following equation?

10 - 4 ÷ 1 x 5

• Subtraction

• Division

• Multiplication

• Addition

Mr. Althouse buys a new cell phone. It costs him 50 dollars but he has a coupon to save 20 dollars. Which expression would allow someone to figure out how much he will will spend for m months?

• 50m + 20

• 50m - 20

• 50 + 20 - m