Interest rate (with changing years). Keiko is looking at the following investment choices and wants to know what annual rate of return each choice produces. a. Invest $360.00 and receive $847.99 in 10 years. b. Invest $3,600.00 and receive $10,835.13 in 14 years. c. Invest $30,790.87 and receive $150,000.00 in 26 years. d. Invest $32,644.32 and receive $1,500,000.00 in 50 years. a. What annual rate of return will Keiko earn if she invests $360.00 today and receives $847.99 in 10 years? % (Round to two decimal places.) Waiting period. Jamal is waiting to be a millionaire. He wants to know how long he must wait if a. he invests $24,649.67 at 20% today? b. he invests $52,375.53 at 17% today? c. he invests $141,951.72 at 11% today? d. he invests $317,751.41 at 5% today? a. How long will Jamal have to wait to become a millionaire if he invests $24,649.67 at 20% today? years (Round to the nearest whole number.) Double your wealth. Kant Miss Company is promising its investors that it will double their money every 6 years. What annual rate is Kant Miss promising? Is this investment a good deal? If you invest $500 now and Kant Miss is able to deliver on its promise, how long will it take your investment to reach $35,000? Using the Rule of 72, what annual rate is Kant Miss promising? % (Round to the nearest whole percentage.)