When qualifying a buyer using the fannie mae guidelines, what is the ratio allowed for the amount of money for housing expense compared to gmi

Suppose interest rates fall in the united states, but they don't fall in morocco. what is the short-run impact of this change in interest rates on the value of the u.s. dollar (usd), the value of the moroccan dirham (mad), and u.s. net exports (based on the changing value of the dollar)? usd / mad / net exports appreciate / depreciate / increase appreciate / depreciate / decrease depreciate / depreciate / increase depreciate / appreciate / decrease depreciate / appreciate / increase