Solve without using excel please. thank you

Yani bas $12,000 for investment purposes. His bank has offered the following three choices 1. A special savings certificate that will pay $100 each month for 5 years and a lump sum payment at the end of 5 years of $13,000 2. Buy a share of a racehorse for $12.000 that will be worth $20,000 in 5 years 3. Put the money in a savings account that will have an interest rate of 12% per year compounded monthly What is the internal rate of return used to make your decision? 1. Certificates 2. Racehorse: 3. Savings Account: % Use an internal rate of return analysis to make a recommendation to Yani. %