Please show work for #14 will rate if correct

12. costs are costs of manufacturing two or more products that are not separately identifiable as individual products until their split off point. a. Separable Joint c. Incremental d. Sunk 13. At the current discount rate, the net present value of an 8-year project is zero. Assuming that the current discount rate and the annual cash flows are unchanged, identify which one of the following statements is true. a. The project will be desirable if the project's life is increased to 10 years. b. The project will be desirable if the project's life is reduced to 5 years. c. The project is equally desirable at 5 and 10 years. d. The project is equally undesirable at 5 and 10 years. 14. A company is considering the purchase of some equipment that in the second year of operation should cause an increase in sales of S150,000, an increase in cash expenses of $90,000, and a depreciation deduction of $45,000. If the appropriate tax rate is 20%, the after-tax effect of this equipment on cash flows in year two is a. no effect b. net after-tax cash inflows of $57,000 c. net after-tax cash inflows of $9,000 d. net after-tax cash inflows of S15,000