(a) Widgets currently cost $1/kg. You put $1400 into an investment account with 14% annual interest. Through use of an exact calculation (i.e., don't approximate real interest), how many kg of widgets can you purchase in 6 years if inflation is 4% annually? (1.5 point) F= (b) How much will the widgets in the problem above cost at the time of purchase (i.e., the total cost of all the widgets you're going to purchase)? (1.5 point) F=