Sheffield Growth Farms, a farming cooperative, is considering purchasing a tractor for $563,070. The machine has a 10 -year life and an estimated salvage value of $52,000. Delivery costs and set-up charges will be $13,700 and $430, respectively. Sheffield Growth uses straight-line depreciation and has a required rate of return of 9%. Sheffield Growth estimates that the tractor will be used five times a week with the average charge to the individual farmers of $430. Fuel is $60 for each use of the tractor. The present value of an annuity of 1 for 10 years at 9% is 6.41766 . Click here to view PV tables. For the new tractor, compute the: (a) Your answer is correct. Cash payback period. (Round answer to 1 decimal places, e.g. 15.2.) Cash payback period years Attempts: 1 of 2 used (b) eTextbook and Media Net present value. (Round factor values to 5 decimal places, e.g. 15.11212. Round Intermediate calculations and final answer to 0 decimal places, e.g. 5,275.) Net present value $ (c) * Your answer is incorrect. Annual rate of retum. (Round answer to 2 decimal places, e.g. 15.25\%.)