4. A privately owned summer camp for youngsters has the following data for a 12-week session: Capacity 200 campers Charge per camper $480 per week Fixed cost $192,000 per week Variable cost per camper $320 per week a. Write down the equations for total revenue and total cost. b. Determine the break-even number of campers. C. What would be the profit/loss if the camp operates at 80% capacity for a 12-week session? d. What are the marginal and average costs per camper at 80% capacity