Suppose the United States and Australia were the only two countries in the world, and that both countries pursued a fl oating exchange rate regime. Note that the currency in Australia is the Australian dollar. a. Draw a correctly labeled graph showing equilibrium in the foreign exchange market for U.S. dollars. b. If the Federal Reserve pursues expansionary mone- tary policy, what will happen to the U.S. interest rate and international capital fl ows? Explain. c. On your graph of the foreign exchange market, illustrate the effect of the Fed's policy on the supply of U.S. dollars, the demand for U.S. dollars, and the equilibrium exchange rate. d. How does the Fed's monetary policy affect U.S. aggregate demand? Explain