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10.20 The A.M.I. Company is considering installing a new process machine for the firm's manufacturing facility. The machine costs $220,000 installed, will generate additional revenues of $85,000 per year, and will save $65,000 per year in labor and material costs. The machine will be financed by a $120,000 bank loan repayable in three equal annual principal installments, plus 9% interest on the outstanding bal- ance. The machine will be depreciated using seven- year MACRS. The useful life of the machine is 10 years, after which it will be sold for $20,000. The combined marginal tax rate is 40%. (a) Find the year-by-year after-tax cash flow for the project. (6) Compute the IRR for this investment. (c) At MARR = 18%, is the project economically justifiable