Waiting period. Jamal is waiting to be a millionaire. He wants to know how long he must wait if a. he invests $24.819.01 at 21% today? b. he invests $47,786.43 at 15% today? c. he invests $164,153.92 at 11% today? d. he invests $264,295.91 at 6% today? a. How long will Jamal have to wait to become a millionaire if he invests $24,819.01 at 21% today? years (Round to the nearest whole number.)