A community sports league is raising money by making custom shirts to sell at league games. They plan to sell the shirts for [tex] \$14 [/tex]. Each shirt costs [tex] \$7 [/tex] to make. They spent [tex] \$55 [/tex] for advertising.

Use [tex] n [/tex] to represent the number of shirts they sell. Multiply this by the money they make for each shirt, then subtract the advertising cost.

Which expression represents the money that the league raises?

A. [tex] (14 - 7)n - 55 [/tex]
B. [tex] 14n - 7 - 55 [/tex]
C. [tex] 14 - 7n - 55 [/tex]
D. [tex] 55 - (14 - 7)n [/tex]



Answer :

To find the expression that represents the money that the league raises, we need to follow these steps:

1. Determine the selling price and cost per shirt:
- The price at which they sell each shirt is [tex]$14. - The cost to make each shirt is $[/tex]7.

2. Calculate the profit per shirt:
- The profit per shirt is given by subtracting the cost per shirt from the selling price:
[tex]\[ \text{Profit per shirt} = \text{Selling price} - \text{Cost price} = 14 - 7 = 7 \][/tex]

3. Express the total profit based on the number of shirts sold:
- Let [tex]\( n \)[/tex] represent the number of shirts sold.
- The total profit from selling [tex]\( n \)[/tex] shirts would be:
[tex]\[ \text{Total profit} = \text{Profit per shirt} \times n = 7 \times n = 7n \][/tex]

4. Subtract the fixed advertising cost:
- The league spent \$55 on advertising, which is a fixed cost that must be subtracted from the total profit:
[tex]\[ \text{Net money raised} = 7n - 55 \][/tex]

Thus, the expression that represents the money that the league raises is:

Option A. [tex]\((14-7) n - 55\)[/tex]

Simplifying this, it becomes:

[tex]\[(14 - 7) n - 55 = 7n - 55\][/tex]

Therefore, the correct expression is [tex]\( 7n - 55 \)[/tex], which matches Option A.