53. A middle school is selling candy bars to raise money for new calculators. The graph shows the number of candy bars sold, x, and the amount of money collected, y.

Which equation represents this relationship?

Several clothing items were sold during the Grand Opening Sale. A table of some shirt sales with missing data is shown. When the total cost is $87.50, how many shirts were purchased?

What is the constant of proportionality for the cost per shirt?

A cell phone company is giving a 20% discount on all phone accessories. Which expressions can be used to find the sale price of an item with an original price of x dollars? Select all that apply.

The graph shows how many calories are in a store’s best-selling candy. There are 60 calories in ____________ pieces of the best-selling candy.

Identify the equation that corresponds to the table shown.

Several pairs of pants were sold during the Grand Opening Sale. Sales for part of the day are shown in the graph. What is the constant of proportionality for the cost per pair of pants?

A store marks up the merchandise it receives from the manufacturer by 25%. Which expressions can be used to determine the price the store charges when the manufacturer charges m dollars? Select all that apply.

The graph shows how many calories are in a store’s best-selling candy. The constant of proportionality is _____________ calories per one piece of candy.

If c represents the cost, in dollars, and s is the number of shirts, which equation correctly identifies the relationship between the cost and the number of shirts?