Which equation shows how a firm’s marginal cost can be determined by looking at changes in its variable cost?

If fewer U.S. dollars are needed to buy a Swiss franc, then

a. Swiss goods become relatively more expensive to U.S. residents b. U.S. residents buy fewer francs c. U.S. goods become relatively cheaper to Swiss residents d. U.S. residents buy more Swiss goods e. U.S. residents supply more francs

Demand is inelastic if

A. the quantity demanded does not change very much even if the price changes dramatically. B. the demand curve is bowed inward. C. the quantity demanded changes along with the price. D. the demand curve is bowed outward.