Consider the following cases and indicate for each case the direction and amount of changes in NX and NCO for the U. S. (e. g. NX decreases by $2, NCO increases by $3, etc.). Please circle your final numerical answers and explain how you arrived at the numerical answers. a. The U. S. government uses 500,000 U. S. dollar’s worth of previously obtained Chinese Yuan to buy 500,000 U. S. dollar’s worth of N-95 masks from a Chinese company.