M4T1L2 - Intro to Algebraic Expressions

Evaluate the expression.

b - 7 when b = 16

• 9

• 23

• 16

• 11

Evaluate 4y  when y = 3

• 7
• 12
• 43

• 1

• 71

• 962

• 53

• 558

b² + 4
when b = 3

• 10
• 12
• 13
• 36

Evaluate 8a - b     if a = 10   and   b = 6

• 74
• 32

• 76

• 804

• 10

• 20

• 22

• 17

What does "-7x" mean when translated into a math sentence?

• -7 minus x

• a number divided by -7

• -7 times a number

• -7 and x

What does "9x" mean when translated into a math sentence?

• 9 times x

• nine divided by a number

• 9 and x

• 9 minus x

Evaluate 5n + 10 , n= 3

• 25

• 63

• 530

A number, z less than 20.

• 20 - z

• z - 20

• 20z

• z/20