Final answer:
Derek's profit from selling the shirt was calculated by subtracting the original price of $23.98 from the selling price of $1,175, resulting in a profit of $1,151.02.
Step-by-step explanation:
To calculate the profit Derek made from selling the shirt, we need to subtract the original price of the shirt from the selling price. The original price of the shirt was $23.98 and he sold the shirt for $1,175. Therefore, the profit is calculated as follows:
Profit = Selling price - Original price
Profit = $1,175 - $23.98
Profit = $1,151.02
Hence, the correct answer is (b) $1,151.02.