In the short run, marginal cost is positive and increasing at output levels where total variable cost is ________ at a(n) ________ rate.

In the above figure, the average product of labor at point c is

A) 10. B) 5. C) 2. D) None of the above answers is correct.

The quantity theory of money explains how ________ depends on ________

A) real GDP; the money supply B) the price level; the demand for money C) the money supply; the velocity of money D) all of the above E) none of the above