Bill has just returned from a duck hunting trip. He brought home eight ducks. Bills friend, John, disapproves of duck hunting, and to discourage Bill from further hunting, John presented him with the following cost estimate per duck: Camper and equipment: Cost, $15,000; usable for eight seasons; 14 hunting trips per season $ 134 Travel expense (pickup truck): 100 miles at $0.37 per mile (gas, oil, and tires$0.24 per mile; depreciation and insurance$0.13 per mile) 37 Shotgun shells (two boxes per hunting trip) 25 Boat: Cost, $2,480, usable for eight seasons; 14 hunting trips per season 22 Hunting license: Cost, $50 for the season; 14 hunting trips per season 4 Money lost playing poker: Loss, $20 (Bill plays poker