+0 Beginning one month after birth of Mr. Larkinson's child, Alexander, Mr. Larkinson deposited $100 each month in an annuity for his college fund. The annuity earned interest at an average rate of 6.8% compounded monthly until his 18th birthday. What was the amount of Alexander's college fund on his 18th birthday?
how much interest did Alexander's college fund earn in total on his 18th birthday?
