Please answer all questions and show work.

6. (Ignore income taxes in this problem.) Pacifica Corporation is investigating the purchase of a new threading machine that costs $18,000. The machine would save about $4,000 per year over the present method of threading component parts, and would have a salvage value of about $3,000 in 6 years when the machine would be replaced. The company's required rate of return is 12% The machine's net present value is closest to: A. $1,556 B. (S35) C. $11,000 D. $8,000 (Ignore income taxes in this problem.) Campbell Corporation is considering a machine that will save $8,000 a year in cash operating costs each year for the next six years. At the end of six years it would have no salvage value. If this machine costs $33,848 now, the machine's internal rate of return is closest to: A.990 B. 10% C. 1196 D. 1296 17. 18. The net present value of an investment project is $28,842 and its project profitability index is 0.1518. The initial investment in this project was: A. $190,000 B. $25,041 C. $215,800 D. $185,200