Arkansas Best Freightways is considering a purchase of three different potential trucks. it is considering three different investment scenarios and their respective cash flows. Arkansas Best Freightways use a cost of capital of 9 percent to evaluate the investments. Required: 1. Calculate the net cash flows (not discounted) over the life of the three investments (years 0 to 4). (Negative amounts should be entered using a minus sign.) 2. Calculate the present value for each of the three possible investments over years 1 through 4 , using the 9 percent cost of capital as the interest (or discount) rate. (Round your answer to 2 decimal places. Use the Excel NPV() function to calculate the present value for each of the three possible investments.)