4. A company is considering purchasing a new machine and has to choose between two options. The specifications of each are given below. Both machines have 5 years economic life and the tax rate is 50%. Suppose that no tax is paid if the taxable income is non-positive. Given that after-tax MARR is 30%, determine which machine to be selected. Machine I Machine II First Cost ($) -90,000 -80,000 Annual Revenues ($) 20,000 25,000 Depreciation Method Straight Line Double Declining Balance Salvage Value (8) 40,000 15,000