Waiting period. Jamal is waiting to be a millionaire. He wants to know how long he must wait if a. he invests $25,458.75 at 21% today? b. he invests $53,638.07 at 16% today? c. he invests $150,115.78 at 8% today? d. he invests $303,862.75 at 7% today? a. How long will Jamal have to wait to become a millionaire if he invests $25.458.75 at 21% today? years (Round to the nearest whole number.) b. How long will Jamal have to wait to become a millionaire if he invests $53,638.07 at 16% today? years (Round to the nearest whole number.) c. How long will Jamal have to wait to become a millionaire if he invests $150,115.78 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 $303,862.75 at 7% today? years (Round to the nearest whole number.)