Whispering Winds Growth Farms, a farming cocperative, is considering purchasing a tractor for $568,660. The machine has a 10 -year The and an estimated salvage value of $53,000. Delivery costs and sut up curges wht be 513,800 and 5440 , respectively Whispering Winds Growth uses stra ght-line depreciation and has a required rate of return of 9%. Whispering Winds Growth estimates that the tractor will be used five times a veek with the average charge to the individual farmers of 5440 . Fuel is $60 for each ure of the tractor. The present value of an annulty of 1 for 10 years at 9% is 6.41766 . Click here to view PV tables. For the new tractor, compute the: (a) Cash payback period. (Round answer to t decimat places es. 15.2)". Cash parybackperiod years eTextbook and Media Attempts 0 of 2 used (b) The parts of this question must be completed in order. This part will be avai able when you complete the part above