In general, the purpose of markets is to facilitate the exchange of goods and services between buyers and sellers

After World War II, many currencies were:

A) losing value because of the war's devastation. B) still on the gold standard. C) suffering from high inflation. D) pegged to the U.S. dollar.

The table above gives the demand for a monopolist's output. What is the marginal revenue when output is increased from 2 to 3 units?

A) $18 B) $4 C) $7 D) $6