Street entertainers face the free-rider problem when they perform because of the:

When the marginal product is increasing as the quantity increases, then as the quantity increases, the

A) average product is decreasing. B) marginal cost is decreasing. C) total cost is decreasing. D) total product is decreasing. E) fixed cost is increasing.

Suppose there are 100 identical firms producing package delivery services. One of the firms finds that when it has to pay a wage rate of $7, it hires 20 delivery people. The firm charges an average price of $10 to deliver a package. From this information, we know that the package delivery industry is hiring a total of:

a. 100 workers. b. 200 workers. c. 700 workers. d. 2,000 workers. e. 10,000 workers.