Chapter 3 Test: Expressions

The same digits are used for the expressions 3⁴ and 4³. Select the symbol that correctly compares the expressions.

3⁴ ___ 4³

• >

• <

• =

Evaluate the expression 6.708 – g for g = 0.173

Select each expression that has a value of 15 when x = 15.

• (3,015 ÷ x) – 186

3x + 5 + 4y + 8z

Identify the variables, constant, coefficients, and the number of terms

• Variables = 3x, 4y, 8z

  Constant = 5

  Coefficients = 3, 4, 8

  # of Terms = 4

• Variables = x, y, z

  Constant = 5

  Coefficients = 3, 4, 8

  # of Terms = 4

• Variables = x, y, z

  Constant = 5

  Coefficients = 3x, 4y, 8z

  # of Terms = 5

• Variables = x, y, z

  Constant = 5

  Coefficients = 3x, 4y, 8z

  # of Terms = 4

Select all expressions that are equal to...

4(5x + 3)

• 20x + 3

• 20x + 12

• 2(10x + 6)

• 9x + 7

• 5(4x + 3)

Mr. Johnson is buying soda sold in packs of 12. Select all expressions that can represent the total number of cans Mr. Johnson is getting in p packs of soda.

• 12 - p

• 12(p)

• p + 12

• 12p

Mr. Rogers wants to rent a cargo van for a day. It will cost the daily fee of $50 plus $0.35 per mile driven. Let m = the number of miles Mr. Rogers drives for the day. Choose the expression that shows the amount he will pay for the van.

• 50m + 0.35

• 0.35m + 50

• 50.35m

• 0.35 ÷ m + 50

Which of the following is an example of the associative property?

• 2+(3+5)=(2+3)+5

• 7 + 2 = 2 + 7

• 7 + 0 = 7

• 9(3+2)=9(3)+9(2)

• 15(1) = 15

Select the expressions that are equivalent to 12n + 8. Select all that apply.

• 3n + 4 + 3n - 4 + 4n

• 11n + 6 + n + 2

• 6(6n + 2)

• 4(3n + 2)

• 4n + 2³ + 8n