:Employed full-time:4,200Employed part-time:  700Not employed and looking for work:  300Not employed and not looking for work:  200Given the data in Table 12.1, if the workers who are "not employed and not looking for work" were counted as not employed and in the labor force, the unemployment rate of Metropolis would be approximately:

Curve (4) in the diagram is a purely competitive firm's:

A. total cost curve.
B. total revenue curve.
C. marginal revenue curve.
D. total profit curve.

The exchange rate of the dollar relative to other currencies is determined by market forces. When equilibrium is present in the exchange rate market,

A) the purchases of Americans from foreigners will be equal to the sales of Americans to foreigners. B) imports from foreigners will create jobs in other countries but employment in the United States will decline by an equal amount. C) the gains of Americans from international trade will be just equal to the gains of foreigners from the trade. D) Americans will gain from the international trade only if foreigners lose an equal amount.