The graph depicts the marginal revenue (MR), demand (D), and marginal cost (MC) curves for a monopoly

APlace point P1 at the profit maximizing price and quantity

assuming that the monopolist can only charge a single price.

BWhat are the profits of the firm if it charges a single price?

Suppose the monopolist is able to price discriminate between

two groups successfully by charging one group $75 and

charging $35 to the other group.

C.What are the firm's profits if it charges the two prices as

mentioned above?