3. (15 points) For the alternatives show below, only one can be chosen. The first and annual costs are estimated. Both options are expected to have a 3-year useful life. If the MARR is 20% per year, determine which alternative should be selected based on rate of return. Calculate by hand or use spreadsheet. First Cost, $ Maintenance & Operations, $/year Salvage Value, $ Revenue, $/year Robot X -84,000 -31,000 40,000 96,000 Robot Y -146,000 -28,000 47,000 119,000 Life