An imperfectly competitive firm has the following total cost curve: C = 100 + 4Q. What is average total cost equal to when Q = 10?

Scarcity guarantees that

A) demands will exceed wants. B) wants will exceed demands. C) demands will be equal to wants. D) most demands will be satisfied.

Activist macroeconomists believe that fiscal and monetary policy ______.

a. have little or no function in trying to influence the economy b. can stimulate or dampen the economy in the short-run c. are only effective tools when applied over the long-run d. are only effective when they are used in ways the public was not expecting