Pia bought a box of 28 crackers. Throughout the week, she ate some crackers. There are 19 crackers left. Which equation can you use to determine the number of crackers that Pia ate?

A) 28 - c = 19B) 19 - c = 28C) 19 × c = 28D)28 ÷ 19 = c

In a regular octagon, all sides are equal in length. The perimeter of the octagon is 15 inches.

Which equation can be used to find m, the length of one side in relation to the perimeter?

A)m= 8(15)B) m+ 8 = 15C) 8m = 15 D) = m

Jacob earns $300 each week at his job. He is trying to save to buy a new stereo system that costs $2,500. Which statement can be used to find out how many weeks he needs to work before he can buy the stereo system?

A) 300 ÷ x = 2,500B) 300 + x = 2,500

C) 300x = 2,500D)2,500 - x = 300

Which situation could be modeled by the equation x – 3.50 = 4.75?

A) Alta had $4.75. She paid $3.50 for a wallet. What is x, the amount of money Alta has left?

B) Julio found a cap with a sale price of $4.50. The discount was $3.50. What is x, the original price of

the cap?

C) Roger drew a line segment that was 3.50 inches long. Renee drew a line segment that was 4.75

inches long. What is x, the difference in the length of the two line segments?

D) Ami did her math problem in 3.50 minutes. Gio worked his math problem in 4.75 minutes. The

time limit was 5 minutes. What is x, the difference in Ami’s time and the time limit?

Which situation is best represented by the equation 3x=288?

A) Ms. Jones makes 3 equal stacks of cafeteria trays. There are 288 trays in all. What is x, the number

of trays in each stack?

B) Ms. Jones makes 3 stacks, each with 288 cafeteria trays. What is x, the number of trays in all?

C) Ms. Jones stacks 3 cafeteria trays. There are 288 more trays to stack. What is x, the number of

trays in all?

D)Ms. Jones has to stack 288 cafeteria trays in all. She has 3 trays left to stack. What is x, the

number of trays Ms. Jones has already stacked?

The model represents the equation 3n = -9.

What value of n makes this equation true?

A) 3

B) -27

C) -12

D)-3

Jimmy is watching a movie that is 230 minutes long. He paused the movie after 80 minutes.
The remaining length of the movie can be modeled by the equation 80+ n = 230.What step should be taken to determine the value for n?

A) Add 80 to both sides of the equation.

B)Add 230 to both sides of the equation

C) Subtract 80 from both sides of the equation.

D)Subtract 230 from both sides of the equation

5 less than a number, n / A. 3n
The product of 3 and a number, n / B. 5n – 3
5 times the sum of a number, n and 3 / C. n – 5
The difference of 5 times a number, n and 3 / D. 5 (n + 3)