In a monopoly market, suppose the linear MC intersects MR at 15 units of output. At this level of output, MR and MC are $2. The price that the monopolist charges is given as $5. MC also intersects the linear demand curve at 25 units of output. At this level, P and MC are $3. The price is $11 when demand is zero.

b. Calculate the monopolist's total revenue if the monopolist uses perfect price discrimination. (4 marks)

c. Calculate the deadweight loss if the monopolist charges a single price. (2 marks)