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



Answer :

Let's analyze the problem step-by-step to understand how to calculate the money raised by the league.

1. Selling Price and Cost per Shirt:
- The league sells each shirt for \[tex]$14. - The cost to make each shirt is \$[/tex]7.
- Therefore, the profit per shirt is [tex]\( \$14 - \$7 = \$7 \)[/tex].

2. Number of Shirts Sold:
- Let [tex]\( n \)[/tex] represent the number of shirts sold.

3. Total Profit from Selling [tex]\( n \)[/tex] Shirts:
- Since the profit per shirt is \[tex]$7, selling \( n \) shirts will give a total profit of \( 7n \). 4. Subtract Advertising Cost: - The league spent \$[/tex]55 on advertising. This cost should be subtracted from the total profit.
- Therefore, the expression representing the total money raised after selling [tex]\( n \)[/tex] shirts, while accounting for the advertising cost, is [tex]\( 7n - 55 \)[/tex].

Now, let's identify the correct expression from the given options:
- A. [tex]\((14 - 7) n - 55\)[/tex] correctly simplifies to [tex]\(7n - 55\)[/tex].
- B. [tex]\(14 n - 7 - 55\)[/tex] does not correctly represent the process, as it subtracts fixed amounts incorrectly.
- C. [tex]\(55 - (14 - 7) n\)[/tex] incorrectly subtracts the profit from the advertising cost.
- D. [tex]\(14 - 7 n - 55\)[/tex] incorrectly calculates the profit and subtracts in an incorrect manner.

Therefore, the correct answer is:
[tex]\[ A. (14 - 7) n - 55 \][/tex]
which simplifies to:
[tex]\[ (7 \cdot n) - 55 \][/tex]