In 2002, the United States contained around _____ governmental units at all levels

The average product of labor increases as output increases if _______

A. marginal product exceeds average product B. average product exceeds marginal product C. total product increases D. marginal product increases

John is trying to decide how to divide his time between his job as a stocker in the local grocery store, which pays $7 per hour for as many hours as he chooses to work, and cleaning windows for the businesses downtown. He makes $2 for every window he cleans. John is indifferent between the two tasks, and the number of windows he can clean depends on how many hours he spends cleaning in a day, as shown in the table below:Hours PerDay CleaningWindowsTotal Numberof WindowsCleaned0017211314416517How many hours a day should John spend cleaning windows?

A. 1 B. 2 C. 3 D. 4