Suppose a market is characterized as having two different classes of buyers: Class One and Class Two. Furthermore suppose there is only one producer serving this market and this producer has fixed costs equal to $20 and Marginal Cost equal to 1 (MC = 1). The two classes of buyers are described by the following demand curves:

Class One: P = 10 - Q

Class Two: P = 20 - Q

For each of the questions below show your work and reasoning.

Suppose that the monopolist decides to produce the good and sell it for a single price.

a. What is the market demand curve for this single price monopolist?