In the above figure, a single-price monopolist charges a price of ________ and the equilibrium competitive price is ________

The foreign exchange market

A) is a government-run market where foreign currencies are traded. B) is a bank-owned market through which people buy and sell currencies. C) refers to the entire array of institutions through which people buy and sell currencies. D) an open market run by the Federal Reserve through which banks buy and sell currencies.

You put $75 in the bank one year ago and forgot about it. The bank sends you a notice that you now have $81 in your account. What interest rate did you earn?

a. 5 percent b. 6 percent c. 7 percent d. 8 percent