evaluating expressions

evaluate bc + 5a  
when  a = 3, b = 4, and c = -6

• 9
• 38
• -38
• -9

5m + 9n if m = -7 and n = 4

• 71

• 1

• -1

• -71

b² + 4
when b = 3

• 10
• 12
• 13
• 11

6a - 3d
when a = 1, d = 2

• 3
• 12
• 1
• 0

Evaluate 3x + 8   if x = 2

• 13
• 14
• 15
• 16

Evaluate when x = 8:
2x + x - 10

• 34
• 22
• 14
• 24

Which number is the BASE?
2³ = 8

• 2
• 3
• 8
• not here

Write each product using an exponent. 
7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 

• 7⁷
• 7⁸
• 8⁷
• 7⁹

Which expression is equivalent to 3⁴?

• 3+3+3+3
• 4+4+4
• 4x4x4
• 3x3x3x3

 $2^{5\ }$  is the same as 2 x 5.

• True

• False