Your grandmother invested $2,300 for you on the day you were born. This investment has earned an average of 13.8 percent annually. How old are you if the investment is now worth $18,642? O 14.36 years 14.58 years 15.15 years 16.19 years You just inherited $7100 which you are investing at 7.25 percent interest. How long will you have to wait un your account reaches a value of $12,000 O 6.96 years O 8.34 years O 7.50 years O 8.55 years First City Bank pays 7 percent simple interest on its savings account balances, whereas Second City Bank pays 7 percent interest compounded annually. If you made a $73,000 deposit in each bank, how much more money would you earn from your Second City Bank account at the end of 9 years? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16 .) Difference in accounts Six years ago, you convinced your son to deposit $900 in a savings account at the bank that will pay 5.25 percent interest. Currently, he is itching to spend that money. How much more money will he have if you can convince him to wait another year to withdraw his savings rather than withdrawing the funds today? O $55.09 $69.70 $49.73 O $64.23