Sheridan Inc. wants to purchase a new machine for $28,110, excluding $1,400 of installation costs. The old machine was purchased 5 years ago and had an expected economic life of 10 years with no salvage value. The old machine has a book value of $2,000, and Sheridan Inc. expects to sell it for that amount. The new machine will decrease operating costs by $6,500 each year of its economic life. The straight-line depreciation method will be used for the new machine for a 6-year period with no salvage value. Click here to view PV table. (a) Determine the cash payback period. (Round cash payback period to 2 decimal places, eg. 10.53) Cash payback period years (b) Determine the approximate internal rate of return. (Round answer to 0 decimal places, es. 13\%. For calculation purposes, use 5 decimal ploces as displayed in the foctor table provided.) (c) Assuming the company has a required rate of return of 9%, determine whether the new machine should be purchased, The investment be accepted