11.A non-discriminating monopolist is selling 11 units at a price of $10. If the marginal revenue of the 10th unit is $0, then:

Group of answer choices

price of the 10th unit is $0

price of the 10th unit is $10

price of the 10th unit is $11

not enough information to determine the price of the 10th unit

13.For which of the following products would price discrimination be easiest if it is the case that females have more inelastic demand than males for all of the products listed below.

Group of answer choices

foot massage

soccer balls

highlighters

milk

17.Consider a nondiscriminating imperfectly competitive firm that is selling its 100th unit of output at a price of $25. The marginal revenue of the 100th unit:

Group of answer choices

will be less than $25.

may be either greater or less than $25.

will be greater than $25.

will be $25.