Assume that $1 equals 100 yen (¥). A Japanese visitor to the United States wants to pay her $400 hotel bill. How many yen should she exchange in order to have enough dollars to pay the bill?

As the number of firms in an oligopolistic market increases, ________

A) prices tend to decline toward marginal cost B) prices tend to rise above marginal cost C) the market demand for the good tends to fall D) profits earned by firms tend to rise

Okun's law relates ________ to ________

A) inflation; unemployment B) inflation; output C) output; unemployment D) output; employment