Waiting period. Jamal is waiting to be a millionaire. He wants to know how long he must wait if a. he invests $22,677.76 at 19% today? b. he invests $51,991.75 at 15% today? c. he invests $135,647,42 at 8% today? d. he invests $281,128.87 at 5% today? a. How long will Jamal have to wait to become a millionaire if he invests $22,677.76 at 19% today? years (Round to the nearest whole number.) b. How long will Jamal have to wait to become a millionaire if he invests $51,991.75 at 15% today? years (Round to the nearest whole number.) c. How long will Jamal have to wait to become a millionaire if he invests $135,647,42 at 8% today? years (Round to the nearest whole number.) d. How long will Jamal have to wait to become a millionaire if he invests $281,128.87 at 5% today? years (Round to the nearest whole number.)