NPV and IRR: Equal Annual Net Cash Inflows Apache Junction Company is evaluating a capital expenditure proposal that requires an initial investment of $15,666, has predicted cash inflows of $3,000 per year for 17 years, and has no salvage value. (a) Using a discount rate of 16 percent, determine the net present value of the investment proposal. (Round to the nearest whole number.) (b) Determine the proposal's internal rate of return. (c) What discount rate would produce a net present value of zero?