Answer:
C
Explanation:
Annual Gross Profit is Revenue - Cost
Sam's Revenue comes from service fee that he charges customers. Sam's revenue for 1 customer is:
25 per week for 52 week = 25 * 52 = 1300 per year
Sam has 85 customers, so total revenue would be:
1300 * 85 = $110,500
Sam's cost is 48,000 per year from pool cleaning.
Thus,
Annual Gross Profit = 110,500 - 48,000 = $62,500
C is the correct answer.