Your firm needs a computerized machine tool lathe which costs $50,000 and requires $10,000 in instalation and another $12,000 in maintenance for each year of its 3-year life. after three years, this machine will be replaced. the machine falls into the macrs 3-year class life category. assume a tax rate of 21 percent and a discount rate of 12 percent.If the lathe can be sold for $7,000 at the end of year 3, what is the after-tax salvage value?