PLEASE HELP!

a) what is the tax paid at the end of year 2?

b) what is taxable income at end of year 4?

c) what is the depreciation write-off allowance(DWO) at end of year 1?

d) what is the present worth (PW) of all after-tax cash flows (ATCFs) ?

An investment of $250,000 is made in equipment that qualifies as MACRS-GDS 7-year property. The before-tax cash flow profile for the investment is given below, including a $100,000 salvage value at the end of the 5-year planning horizon. A loan is taken for 80% of the investment capital at an annual compound interest rate of 18% and the loan is repaid over a 5-year period. The accumulated interest is paid at the end of each year, but no principal is paid until the end of the loan period (that is, the full principal is paid at the end of the fifth year). A 25% tax rate and an MARRAT of 7% apply. EOY BTCF 0 -$250,000 1 $40,000 2 $40,000 3 $40,000 4 $40,000 5 $140,000