Nоte: This is the mоst time-cоnsuming problem computаtionаlly. It mаy be wise to answer the other questions first and return to this one later. Try not to spend more than 15 minutes on it before moving on. You invested $500 in an account. The account paid you $`A` every year for 5 years. What was the internal rate of return (IRR)? Hint: You will need to use the interpolation formula and can start with i1 = 9%. Submit your final answer as a decimal to 4 decimal places. EX: 0.1234 Margin of error +/- 0.005 Enter your answer up to 4 decimal places.