Unit 4 Review: Numeric and Algebraic Expressionss

Select the expression that is equivalent to 6(3m + 9)

• 9m + 15

• 18m + 9

• 18m + 54

• 3(m+ 12)

Completely factor the following expression using the distributive property:

28 + 36

• 14(2 + 3)

• 2(15+ 18)

• 6(4+ 6)

• 4(7 + 9)

Answer explanation

Find the GCF of the two numbers and then divide each number by the GCF.

A variable is a symbol, usually a letter, used to represent an unknown number.

• True
• False

Select all expressions equivalent to 32 + 40x using the distributive property.

• 
  8 (5x + 4)

• 
  5 (6 + 8x)

• 
  4 (8 + 10x)

• 
  2 (16 + 20x)

• 1/9

• 1/27

• 3/9

• 1/3

Evaluate the expression.

(5.2 + 7.3) - 12

• 0.5

• 5.1

• 0.05

• 1

Select all expressions that are equivalent to 6(b + 2) – b.

• 6b + 8 – b

• 
  5b + 8

• 
  5b + 12

• 
  6b + 12 – b

A temperature given in degrees Celsius, C, can be converted to degrees Fahrenheit by using the expression below.

1.8C + 32

If the temperature is 35 degrees Celsius, what is the value in degrees Fahrenheit?

• 36.835

• 63

• 95

• 68