7th Grade Expressions

Which expression below represents a factorization of  $24d\ +\ 40dc$ ? 

•  $8\left(3d+5c\right)$  

•  $8d\left(3+5c\right)$  

•  $8\left(3+5\right)cd$  

•  $8c\left(3+5d\right)$  

Tags

CCSS.7.EE.A.1

Which expression is equivalent to 5a + 4 - 2a - 9?

• 3a + 5

• 7a + 5

• 3a - 5

• 7a + 5

Tags

CCSS.6.EE.A.4

A company produced 24.1 tons of paper towels in 2015. The company's paper towel production increase by 7.9% from 2015 to 2016, and by 5.2% from 2016 to 2017. Which expression below represents a for estimating the total production of paper towel, in tons, in 2017?

• 24(1.08)(1.05)

• 24 + 8 + 5

• 20(8)(5)

• 20 + 1.08 + 1.05

Tags

CCSS.5.NBT.B.7

Which expression is equivalent to $d\ +d\ -0.16d$  ?

• 1.16d

• 1.84d

• d - 0.16

• 2d - 0.84

Tags

CCSS.6.EE.A.4

Which expression is equivalent to $-\frac{1}{4}\left(8x+20\right)-6$ ?

•  $-2x-1$  

•  $2x+11$  

•  $-2x+11$  

•  $-2x-11$  

Tags

CCSS.6.EE.A.3

At a store, a cap has a regular price of x dollars. During a sale, the price of the cap is discounted 24%. The expression 0.76x describes the discounted price, in dollars, of the cap. Which expression also describes the discounted price, in dollars, of the cap?

• 0.24x

• x - 24

• x - 0.24x

• x - 0.24

Tags

CCSS.HSA-SSE.A.1A

Which expression represents the difference of $\left(3x+8y\right)$ and  $\left(x-y\right)$ ? 

•  $2x\ +\ 9y$  

•  $4x\ +\ 7y$  

•  $2x\ +\ 7y$  

•  $4x\ +\ 9y$  

Tags

CCSS.7.EE.A.1

Angelica bought a used laptop for y dollars. One year later the value of the laptop was 0.64y. Which expression is another way to describe the change in the value of the laptop?

• 0.36% decrease

• 0.64% decrease

• 36% decrease

• 64% decrease

Which expression is equivalent to $\left(-5x+6\right)+\left(2x-9\right)$ ? 

•  $3\left(x+1\right)$  

•  $-3\left(x+1\right)$  

•  $-3\left(x-1\right)$  

•  $3\left(x-1\right)$  

Tags

CCSS.6.EE.A.4

Chris drew a rectangle that was $w$ inches wide. He then drew a second proportional rectangle to the first. The expression $3\left(2w\right)+3\left(w\right)$ represents the perimeter of the second rectangle Chris drew. Which statement relates the perimeter of the 2nd rectangle to the perimeter of the first rectangle? 

• The perimeter is 3 times larger. 

• The perimeter is 6 times larger. 

• The perimeter is 9 times larger.

• The perimeter is 3 inches larger. 

Tags

CCSS.7.G.A.1