An exchange rate is the rate at which one currency can be exchanged for another. Working with a partner, use the Internet to find the current exchange rate between the U.S. dollar and the following currencies: Australian dollar, euro, British pound, Japanese yen, and Brazilian real. Has the dollar been rising or falling in value relative to these currencies? Assume that there was general agreement that the dollar was “undervalued.” Why would an increase in U.S. interest rates help increase the value of the dollar relative to other currencies? Explain how the Federal Reserve could push U.S. interest rates higher.