Module 5 Test Review 7th Grade Math

The cost of Noah's lunch, c, after a 15% tip can be represented by the expression c+0.15c. What is this expression written in simplest form?

• 1.15c

• 2c + 0.15

• 0.15c

• 2.15c

Expand -6(5a-3b) using the Distributive Property?

• 30a - 18b

• -30a - 18b

• -30a + 18b

• -30a - 3b

Simplify:

-5(3n-1)-4+8n.

• -23n - 9

• -7n + 1

• 7n + 1

• -7n - 1

What is the simplest form of

(–7x + 3)+(11x-4)?

• 4x - 7

• 4x -1

• 18x + 1

• -18x -1

Nikoli and Sandy each receive a weekly allowance. They also each earn $d per chore that they complete around the house during the week. The table shows each person's earnings last week. The friends plan to save 75% of their combined earnings from the week to buy materials for a treehouse. If d = 3, how much will they have to spend on materials for the tree house?

Nikoli's Earnings Sandy's Earnings

15 + 7d 20 + 9d

• $11

• $47

• $36

• $83

What is  $\left(\frac{2}{5}y\ -8\right)+\left(\frac{3}{10}y+1\right)$  

•  $\frac{7}{10}y+7$  

•  $\frac{7}{10}y-7$  

•  $\frac{5}{10}y+9$  

•  $\frac{1}{10}y-9$  

Which of the following is the additive inverse(opposite) of -4x+13?

• -4x-13

• -4x+13

• 4x-13

• 4x+13

What is

(-3x+5)-(-7x+2)?

• 10x + 3

• 4x + 3

• 10x + 3

• -4x - 3

What is the GCF of 20x and 25x?

• 5

• 5x

• 20x

• 25x

What is the GCF of 16m and 40mn?

• 8m

• 8mn

• 4m

• 4mn