Unit 6 End of Unit Test Review

Which expression is equal to 4^4?

• 8

• 16

• 4 * 4

• 4 * 4 * 4 * 4

Select all the equations where x = 2.

• x - 2 = 0

• 1 + x = 2

• 8 - x = 6

• 8 = 4x

• 1/2 x = 2

Which expression is equivalent to 10c - 4d?

• 5 (2c - 4d)

• 2 (5c - 2d)

• 2 (5c - 4d)

• c (10 - 4)

Here is an expression: 2 * 2^t

^{Evaluate the expression when t is 3.}

• 4

• 6

• 16

• 20

Here is an expression: 4 * 3^t

^{Evaluate the expression when t is 2.}

• 7

• 12

• 24

• 36

2/5 of the students in a school are in sixth grade. How many 6th graders are there if the school has 60 students?

• 12

• 24

• 30

• 36

2/5 of the students in a school are in sixth grade. How many 6th graders are there if the school has 150 students?

• 30

• 40

• 60

• 100

2/5 of the students in a school are in sixth grade. How many 6th graders are there if the school has x students?

What is the expression in terms of x?

• 2/5 * X

• 2x - 5

• 5/2 * x

• 5x * 2

2/5 of the students in a school are in sixth grade. How many students are in the school if 40 of them are 6th graders?

• 50

• 100

• 125

• 140

Jane makes sparkling juice by mixing 3 cups of sparkling water with every 4 cups of apple juice.

How much sparkling water does Jane need if she uses 16 cups of apple juice?

• 10

• 12

• 14

• 16