Final answer:
The optimal number of copies Ghost should sell is 3,600.
Step-by-step explanation:
In order to determine the optimal number of copies to sell, we need to find the quantity level where the demand and the supply curves intersect.
For the United States market, the inverse demand function is given by P1=25.00-Q/1200, and for the England market, the inverse demand function is given by P2=16.00-Q/250.
Ghost, the monopolist, must charge a uniform price. So, in order to find the optimal quantity (Q) to produce and sell, we need to find the level at which both the demand and supply curves intersect. This means setting the two demand functions equal to each other: P1 = P2. Simplifying and solving for Q, we get Q = 3,600.