Starting on the day Elijah was born, his mother has invested $50 at the beginning of every month in a savings account that earns 2.50% compounded monthly. a. How much did Elijah have in this account on his 22nd birthday? Assume that there was no deposit on that day. Round to the nearest cent b. What was his mother's total investment? Round to the nearest cent c. How much interest did the investment earn?.