5. For the cash flows shown below, use an annual worth comparison to determine which alternative is best at an interest rate of 12% per year compounded monthly. Alternative X 60,000 Y Z 300,000 900,000 20,000 15,000 60,000 7,000 25,000 200,000 5 20 00 First Cost, $ Monthly Costs, $/month 30,000 Cost every 4 years,$ Salvage Value,$ Life, yrs