firm wants the use of a machine that costs $90,000. If the firm purchases the equipment, it will depreciate the equipment at the rate of $18,000 a year for our years, at which time the equipment will have a residual value of $18,000. Maintenance will be $2,600 a year. The firm could lease the equipment for four ears for an annual lease payment of $23,424. Currently, the firm is in the 40 percent income tax bracket. a. Determine the firm's cash inflows and outflows from purchasing the equipment and from leasing. Use a minus sign to enter negative values, if any. If the answer is zero, enter " 0 ". Round your answers to the nearest cent. b. If the firm uses a 12 percent cost of funds to analyze decisions that involve payments over more than a year, should management lease the equipment or purchase it? Use Appendix B and Appendix D to answer the question. Use a minus sign to enter negative values, if any. Round your answers to the nearest cent. Present value of net cash flows under leasing: \$ Present value of net cash flows under purchasing: \$ Management should the equipment as the present value of the net cash flows under this option is c. If the firm uses a 9 percent cost of funds to analyze decisions that involve payments over more than a year, should management lease the equipment or purchase it? Use Appendix B and Appendix D to answer the question. Use a minus sign to enter negative values, if any. Round your answers to the nearest cent. Present value of net cash flows under leasing: \$ Present value of net cash flows under purchasing: \$ Management should the equipment as the present value of the net cash flows under this option is