You are evaluating two different silicon wafer milling machines. the techron i costs $243,000, has a three-year life, and has pretax operating costs of $64,000 per year. the techron ii costs $425,000, has a five-year life, and has pretax operating costs of $37,000 per year. for both milling machines, use straight-line depreciation to zero over the project’s life and assume a salvage value of $41,000. if your tax rate is 35 percent and your discount rate is 9 percent, compute the eac for both machines. (a negative answer should be indicated by a minus sign. do not round intermediate calculations and round your answers to 2 decimal places, e. g., 32.16.)