13. (9 points total) OneSource is a producer in a monopoly industry. The demand curve, total revenue curve, marginal revenue curve and total cost curve for OneSource are given as follows:

Q = 160 - 4P TR = 40Q - 0.25Q2 MR = 40 - 0.5Q TC = 4Q MC = 4

a) (3 points) How much output will Barbara produce?

b) (3 points) What price will OneSource charge for the output?

c) (3 points) How much profit will OneSource make?