Can someone help me with the IRR?

Bramble Inc. wants to purchase a new machine for $38,770, excluding $1,500 of installation costs. The old machine was bought five years ago and had an expected economic life of 10 years without salvage value. This old machine now has a book value of $2,200, and Bramble Inc. expects to sell it for that amount. The new machine would decrease operating costs by $9,000 each year of its economic life. The straight-line depreciation method would be used for the new machine, for a six-year period with no salvage value. Click here to view PV table. Determine the cash payback period. (Round cash payback period to 2 decimal places, e.g. 10.53.) Cash payback period 4.23 years Determine the approximate internal rate of return.(Round answer to O decimal places, e.g. 13%. For calculation purposes, use 5 decimal places as displayed in the factor table provided.) Internal rate of return % Assuming the company has a required rate of return of 10%, determine whether the new machine should be purchased. The investment should be accepted