Math 6 Unit 6 Review

Which expression is equal to 9⁴?

• 13

• 36

• 4⁹

• 9 x 9 x 9 x 9

Which expression is equal to 4⁵?

• 9

• 20

• 5⁴

• 4 x 4 x 4 x 4 x 4

Select ALL the equations where x = 10 is a solution

• x - 10 = 0

• 3 + x = 13

• x² = 100

• 2x = 12

• 13 - x = 23

Select ALL the equations where x = 5 is a solution

• x - 5 = 0

• 3x = 15

• x² = 25

• 3 + x = 10

• 13 - x = 18

Choose the expression that is equivalent to

9(4a - 7b)

• 13a - 16b

• 36a - 7b

• 36a - 63b

• 36a + 63b

Choose the expression that is equivalent to

2(10x - 5y)

• 12x - 7y

• 20x - 5y

• 20x - 10y

• 20x + 10y

When k = 2
 $3\ \cdot\ 5^k$  

• 30

• 75

When k = 1
 $5\ \cdot\ 11^k$  

• 55

• 60

x + 7.4 = 19.2

• x = 11.8

• x = 26.6

8x = 30

• x = 3.75

• x = 22

• x = 240