Question

Casey sold pies for $4 each at the bake sale. She had to pay a $15 table fee to be in the bake sale. Which expression could we use to find out how much money she made?

a) $15 - $4x
b) $15 + $4x
c) $4x + $15
d) $4x - $15

Answer 1

To find out how much money Casey made, use the expression $4x - $15, where x is the number of pies sold.

Step-by-step explanation:

To calculate how much money Casey made from selling pies at the bake sale, you need to consider both her revenue from selling pies and her cost for participating in the sale, which includes the table fee.

If 'x' represents the number of pies Casey sells, and each pie is sold for $4, then the total revenue from selling pies would be $4 multiplied by the number of pies, or $4x. Casey also had to pay a $15 table fee to participate in the bake sale, which is a one-time cost, regardless of how many pies she sells.

Therefore, the expression to find out how much money Casey made is her total revenue from selling pies minus the table fee she paid. This is represented by the expression '$4x - $15'. So, the correct expression to use would be option (d) $4x - $15.