QUESTION 2 The estimated costs of the two machines are given below. The MARR is 5% per year. To have the gas- powered machine selected based on annual worth analysis, the annual operating cost (A) of the gas- powered machine should be lesser than... Cost- enter a negative value. Alternative First cost, $ Annual cost $/year Salvage values Life, years Gas-powered -5.700 ? 125 7 Solar-powered -6,500 -1.000 320 7