And sightseeing company offers boat tours of historic locations at our near a national landmark. One company offers a tour that is priced at $7 per person and has an average demand of about 1000 customers per week. When the price is lowered to $5, the weekly demand jumps to about 1400 customers per week. a. (2 pts) Assuming that the demand equation is linear, find price demand function (). _____________________ b. (2 pts) Find the revenue function (). _____________________ c. (3 pts) Find the tour price, , that should be charged per person to maximize the total revenue each week.