please help

The net present value method is used to evaluate capital investments. Imagine you are considering purchasing a new delivery truck for your business. The truck should be useable for 5 years and the company's discount rate is 10%. Consider the factors below: Initial purchase price: $80,000 You can sell the truck for $5,000 at the end of 5 years The new truck will provide $25,000 in cash flows each year How would you account for each of the three factors in your net present value calculation? Why does it makes sense to account for each the way you described? Note, I am not asking for the calculation although you can provide this if it helps aid your explanation Please number your responses (1-3) when discussing the how and why. No generic answers please. The profitability index is another method to evaluate capital investments. If you are trying to compare investments of different sizes, why is the profitability Index a better way to do this when compared to the net present value method? No generic answers. Please provide a simple example to support your