A company is considering the purchase of equipment for $400,000, with a useful life of 8 years and no residual values expected to yleld the following annual net incomes and net cash flows Year Net Income Net Cash Flow 1 $90,000 $110,000 2 90.000 100,000 3 80,000 100,000 4 70,000 80,000 5 70,000 90,000 6 80,000 90.000 7 80,000 90,000 8 70.000 90,000 What is the cash payback period? Multiple Choice 4.25 years