Starting on the day Paul was born, his mother has invested $50 at the beginning of every month in a savings account that earns 2.80% compounded monthly. a. How much did Paul have in this account on his 22nd birthday? Assume that there was no deposit on that day. $32,719.60 Round to the nearest cent b. What was his mother's total investment? $13,200.00 Round to the nearest cent c. How much interest did the investment earn? $19,519.60 Round to the nearest cent