Problem 1 (2 points) 1.1 Consider the proposed capital investment in an engineering project. Proposed capital investment: $105,000 Salvage value (end of year four): 0 Annual expenses per year: $20,000 Gross revenues per year: $55,000 Depreciation method: GDS Property Class year: 3 Effective income tax rate (t): 35% After-tax MARR (i): 9% The study period is 4 years. determine (a) after-tax AW