P1016 Long-term investment decision, IRR method Billy and Mandy Jones have $25,000 to invest. On average, they do not make any investment that will not return at least 7.5% per year. They have been approached with an investment opportunity that requires $25,000 upfront and has a payout of $6,000 at the end of each of the next 5 years. Using the internal rate of return (IRR) method and their requirements, determine whether Billy and Mandy should undertake the investment.