please help me with the first three questions

The amount of the estimated average annual income for a proposed investment of $69,000 in a fixed asset giving effect to depreciation (straight line method), with a useful life of 4 years, no residual value and an expected total income yield of $39,500, is 512.350 b. 59.75 C. 55.000 d. 39.500 2 All of the following are factors that may complicate capital Investment analysis except a changes in price levels b. federal income tax ramifications c. sunk costs d. possible leasing alternatives Hayden Company is considering the acquisition of a machine that costs $313,000. The machine is expected to have a useful title of years a negligible ridual value, an annual net cash inflow of $94,000, and annual operating income of 579,900. The estimated cash payback period for the machine as tround to one secmat place) 3. 5. 1 year b. 12 years c. 13 years d. 3. you 2