I need your help solving these problems. Pls help me by answering and showing explanation.

Question 1 (15 points): A piece of new equipment has been proposed by engineers to increase the productivity of a certain manual welding operation. The investment cost is $25,000, and the equipment Will have a market (i.e., salvage) value of $5,000 at the end of a study period of ve years. Increased productivity attributable to the equipment will amount to $8,000 per year after extra operating costs have been subtracted from the revenue generated by the additional production. If the rm's MARR is 20% per year, is this proposal a sound one? Use (1) PW and (2) F W to justify your decision. Question 2 (15 points): A company plans to invest funds to purchase a new machine. The projected after-tax cash flows (MARR = 15%) are as follows. Calculate Simple and Discounted Payback Periods for this investment. Year Net Cash Flow ($) 0 -1000 -500 N 500 3 700 A 1000 UI 1500 6 500