A fixed exchange rate is one that is determined by market conditions

If Mary invests $500 and receives yearly interest of $40, the rate of interest she is earning on her $500 must be

a. 18 percent b. 12.5 percent c. 10 percent d. 15 percent e. 8 percent

Which of the following ideas of Adam Smith has religious overtones?

a. comparative advantage b. aggregate demand c. perfect competition d. rational expectations e. invisible hand