Can you please answer it.

a) Using the demand for and supply of the U.S. dollar you can graph a diagram or explain in words the effect of the following event in the short run. In each case, make sure to properly label all the axes and lines and points. Also, assume the two,countries are major trading partners for each other. -Investment returns in the United States decrease relative to expected returns in Japan. b) If the Mexican peso appreciates against the U.S. dollar, is the following group be better off or worse off? Explain why. -U.S. tourists planning a trip to Mexico c) A rise in the nominal exchange rate ($/{) represents a depreciation of the dollar relative to the euro but a rise in the real exchange rate (S/E) represent an appreciation of the dollar. Explain why this is true