please help solve each part

Interest rate (with changing years). Koiko is looking at the following investment choices and wants to know what annual rate of retum each choice produces a. Invest $440.00 and receive $749.92 in 12 years. b. Invest $3,800.00 and receive $12,688.34 in 15 years. c. Invest $30,923. 11 and receive $140,000.00 in 22 years. d. Invest $31,716.01 and receive $1,300,000.00 in 50 years. a. What annual rate of return will Keiko eam if she invests $440,00 today and receives $749,92 in 12 years? 0% (Round to two decimal places)