please help with 1, 2, and 3. show explanation if possible. thank you!

Problem 14-28 (Algo) Net Present Value Analysis (L014-2] Bilboa Freightlines, SA, of Panama, has a small truck that it uses for intracity deliveries. The truck is worn out and must be either overhauled or replaced with a new truck. The company has assembled the following information: Purchase cost new Remaining book value Overhaul needed now Annual cash operating costs Salvage value-now Salvage value-five years from now Present New Truck Truck $ 31,000 $ 36,000 $ 24,000 $ 23,000 $ 22,000 $ 19,500 $ 5,000 $ 20,000 $12,600 If the company keeps and overhauls its present delivery truck, then the truck will be usable for five more years. If a new truck is purchased, it will be used for five years, after which it will be traded in on another truck. The new truck would be diesel-operated, resulting in a substantial reduction in annual operating costs, as shown above. The company computes depreciation on a straight-line basis. All investment projects are evaluated using a 7% discount rate. Click here to view Exhibit 148-1 and Exhibit 148-2. to determine the appropriate discount factor(s) using tables Required: 1. What is the net present value of the keep the old truck alternative? 2. What is the net present value of the purchase the new truck alternative? 3. Should Bilboa Freightlines keep the old truck or purchase the new one? Complete this question by entering your answers in the tabs below. Required Required 2 Required What is the net present value of the "keep the old truck alternative? (Enter negative amount with a minus sign. Round your final answer to the nearest whole dollar amount.) | Natacanta