A corporation is considering purchasing a machine that costs $100,000 and has a $20,000 salvage value. The machine will provide net annual cash inflows of $25,000 per year and has a 6-year life. The corporation uses a discount rate of 10%. The discount factor for the present value of a single sum 6 years in the future is 0.564. The discount factor for the present value of an annuity for 6 years is 4.355. What is the net present value of the machine? $8,875 $28,875 $(2,405) $20,155