Average rate of retum, cash payback period, net present value method for a service company The 5t. Louis to Seattie Ralload is considering acquiring equipment at a cost of $170,000. The equipment has an estimated lfe of 10 years and no residual value. It is expected to provide yearly net cash flows of $34,000. The company's minimum desired fate of retum for net present value analysis is 15% a. The average rate of return, giving effect to straight-line depreclation on the investment. If required, round your answer to one decimal place. b. The cash payback period. c. The net present value. Use the above table of the present value of an annuity of \$1. Round to the nearest dollar. If required, use a minus sign to indicate negati net present value for current grading purpose