7th Grade Review

In a class of 30 kids, 3 forgot to get their report cards signed. What percent is that?

• 3%
• 30%
• 10%
• 70%

Solve:
3x + 7 = -8

• 5
• -5
• -12
• -18

Solve:
-4x = 24

• 20
• -20
• 6
• -6

Solve:
-8 + 5x - 2 = 20

• 6
• -6
• 2
• -2

Solve:
6(5x - 3) + 2 = 14

• 2
• .5
• -1
• 1

A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is biased?

• The sample didn't include students.
• The sample is too small.
• The sample can only be accurate if each teacher is included in the sample

Translate:

The quotient of a number, n, and 6, decreased by 7

• 6n + 7

• 7n + 6

• n/6 - 7

• 6/n - 7

A package of 8 notebooks costs $16.64. How much does one notebook cost?

• $2.00

• $1.66

• $0.48

• $2.08

A photocopy machine can copy 42 pages every two minutes. How many pages can it photocopy in 5 minutes?

• 105 pages

• 21 pages

• 420 pages

• 4.2 pages

What is the constant of proportionality for this table?   

• 1/9
• 9
• 8