The following table shows the maximum amount five potential car buyers are willing to pay for each level of sales. Suppose that the cars are being sold by a car dealer operating as a monopoly (perhaps because there are no other car dealers in the market).
| Maximum Amount He or She Would Pay for the Car
Buyer 1 | $45,000
Buyer 2 | $40,000
Buyer 3 | $35,000
Buyer 4 | $30,000
Buyer 5 $25,000
a) If the price of the car is $35,000, the revenue will be $ ___.
b) If the marginal cost of each car is $15,000. The monopolistic car dealer will want to sell ___ cars and the price will be $.
c) In a perfectly competitive market, the number of cars sold would be ___ cars.