Final answer:
The profit per shirt is $7, calculated by subtracting the production cost ($6) from the selling price ($13). Selling 10 shirts results in a gross profit of $70, and after factoring in $55 advertising costs, the net profit is $15.
Step-by-step explanation:
Understanding Profit from Shirt Sales
To calculate the profit from shirt sales, we must consider the cost to produce the shirts, the selling price, and any additional expenses such as advertising. For each shirt sold at $13 with a production cost of $6, the profit per shirt is $13 - $6 = $7. If the community sports league incurs an advertising cost of $55, this expense must be subtracted from the total profit made from shirt sales to find the net profit.
As an example, let's assume the league sells 10 shirts. The gross profit would be 10 shirts × $7 profit per shirt = $70. After subtracting the advertising costs ($55), the net profit would be $70 - $55 = $15.
It's also important to consider scenarios where the cost of goods or selling prices differ. For instance, a t-shirt company named Coolshirts sells T-shirts at a different price point or faces different expenses, which would affect the overall net profit differently. In practice, items like Broadway merchandise can have a high selling price, significantly altering the profit margins.