Dividing the total cost of n units of an activity by n reveals the:

In the United States between 1980 and 2000, employment:

A. grew more rapidly than the over-sixteen population. B. decreased, while the over-sixteen population increased. C. grew at approximately the same rate as the over-sixteen population. D. was constant, while the over-sixteen population increased.

If a price floor is set above the equilibrium price,

A. quantity demanded will equal quantity supplied. B. there will be a surplus. C. the floor will be ineffective. D. there will be a shortage.