Please assist with this questions

b. What is the current book value of this generator in use at the Tacoma plant? c. The replacement generator is estimated to have a cost of $1,200,000. This replacement generator is estimated to also have a five-year useful life and is expected to have no salvage value at the end of its five-year life. What is the annual "Depreciation Expense" on this replacement generator, using the straight-line method? d. Assume that Expert Energy Systems' current marginal tax rate is 35%. This firm is able to locate a buyer willing to pay $250,000 for the existing generator today (t = 0). Calculate the tax savings Expert Energy Systems will receive if the current generator is sold for $250,000. e. Assume that the new generator will require a $50,000 increase in net working capital for Expert Energy Systems. Given this information, together with all of the information provided above, calculate Expert Energy Systems' investment at t = 0 for the proposed replacement generator. Be sure to take the effect of the tax savings realized from the sale of the current generator into account (calculated in Question D above) in your calculation of the investment at t = 0.34.- 38. Expert Energy Systems, Inc. is considering the replacement of the main generator at its Tacoma, Washington plant. The current generator in use at the plant was purchased three years ago at a cost of $750,000. This generator is being depreciated over five years using the straight-line method and is assumed to have a salvage value of $0. a. What is the current annual "Depreciation Expense" for this current generator