1. What rate do you need to earn to triple your money in 15 years? . %

2.You want to withdraw $6,500 once year at the beginning of each year for the next 11 years. r=8%. How much money do you need to deposit now to fund the account fully? $

3. You want to withdraw $350 once year at the end of each year starting 2 years from now forever. r=8%. How much money do you need to deposit now to fund the account fully?