Suppose market demand for a product is given by the equation P = 20 – Q. For this market demand curve, marginal revenue is MR = 20 – 2Q.

1 If the marginal cost of producing this good is 0, what quantity would a profit-maximizing monopolist produce?

2 If the marginal cost of producing this good is 4, what quantity would a profit-maximizing monopolist produce?

3 If the marginal cost of producing this good is 0, what price would a profit-maximizing monopolist charge for the product?

4 If the marginal cost of producing this good is 4, what price would a profit-maximizing monopolist charge for the product?

5 If the marginal cost of producing this good is 0, how much total consumer surplus would consumers receive in this market?

6 If the marginal cost of producing this good is 4, how much total consumer surplus would consumers receive in this market?