Charlie Stone wants to retire in 22 years, and he wants to have an annuity of $2200 a year for 20 years after retirement. Charlie wants to receive the first annuity payment at the end of the 22th year. Using an interest rate of 12%, how much must Charlie invest today in order to have his retirement annuity? Multiple Choice $1444.96 $1358.05 $1673.11 $1521.01 If you earn 10% per year on your bank account, how long will it take an account with $500 to triple to $1500? (10% is annual interest rate and given annual compounding) Multiple Choice 15.35 years 18.85 years 11.52 years 14.27 years