K The campus barber faces stiff competition from the large number of shops that surround the campus area, and for all practica 15 people a day. His shop is open 4 days a week. Calculate his weekly total revenue.$ 720. (Enter your response as a whole number.) Calculate his average revenue per haircut. $ 12. (Enter your response as a whole number.) (Enter your response as a whole number.) Calculate his marginal revenue per haircut. S