Winnie's Car Wash is a perfectly competitive firm. The table above shows Winnie's total product schedule. If the price of a car wash is $5 and the wage rate is $62.50 per day, how many workers should Winnie employ to maximize his profit?

At the profit-maximizing level of output, marginal profit

A) is also maximized. B) is zero. C) is positive. D) is increasing. E) may be positive, negative or zero.

The public sector of the U.S. economy includes:

a. the federal, state, and local government. b. multinational corporations and the federal government. c. the Federal Reserve bank of the U.S. d. the judiciary and the federal government. e. households.