Writing and Evaluating Expressions Retake

Which phrase correctly represents the expression  $\frac{z}{5}$  

• one-fifth the batch of cookies

• 5 batches of cookies

• a batch of cookies increased by 5

• a batch of cookies decreased by 5

Which phrase correctly represents the expression 9 + y

• the product of 9 and y

• the sum of 9 and y

• 9 minimized by y

• 9 groups of y

Tickets to the water park cost $53 per person. Parking at the water park cost $15 per car. Write an expression to represent the cost of 1 car full or people to visit the water park.

• 53p

• 15p + 53

• 53p + 15

• 68p

Helen divides up some money to give equally to her four nieces. If d represents the total amount, write an expression to represent how much money each niece receives. SELECT ALL THAT APPLY!

•  $\frac{d}{4}$  

• d $\div$  4

•  $\frac{1}{4}d$  

• dx4

Noelle bought some boxes of water bottles for a picnic. Each box contained 24 bottles of water. If c is the number of boxes, write an expression to show how many bottles of water Noelle bought.

• 24/c

• 24c

• 24 + c

• c - 24

The expression 6x² gives the surface area of a cube, and the expression x³ gives the volume of a cube, where x is the length of one side of the cube. Find the surface area of the volume of a cube with a side length of 2m.

• Surface Area : 144 m²

  Volume: 8 m³

• Surface Area: 24 m²

  Volume: 6 m³

• Surface Area: 24 m²

  Volume: 8 m³

• Surface Area: 36 m²

  Volume: 6 m³

Evaluate the expression  $2x^2+3x-12$  when x = 7

• 105

• 106

• 107

• 108

Evaluate the expression  $3x\left(x-2\right)+2$  when x = 7

• 105

• 106

• 107

• 108

Marjorie evaluated the expression 3x + 2 for x = 5 as shown:

3x + 2 = 35 + 2 = 37

What was Marjorie's mistake?

• Marjorie did not add 35 + 2 correctly

• Marjorie should have multiplied 3 and 5

• Marjorie did not subtract correctly

The volume of a pyramid with a square base is given by the expression  $\frac{1}{3}s^2h$ , where  $s$   is the length of a side of the base and  $h$   is the height. Find the volume of a pyramid with a square base of side length 24 feet and a height of 30 feet. 

•  $17,280\ ft^3$  

•  $5,760\ ft^3$  

•  $1,290\ ft^3$  

•  $480\ ft^3$