Jones Excavation Company is planning an investment of $643,000 for a bulldozer. The bulldozer is expected to operate for 2,000 hours per year for 7 years. Customers will be charged $135 per hour for bulldozer work. The bulldozer operator costs $28 per hour in wages and benefits. The bulldozer is expected to require annual maintenance costing $20,000. The bulldozer uses fuel that is expected to cost $37 per hour of bulldozer operation. a. Determine the equal annual net cash flows from operating the bulldozer. b. Determine the net present value of the investment, assuming that the desired rate of return is 6%. Use the present value of an annuity of $1 table above. Round the nearest dollar. If required, use the minus sign to indicate a negative net present value. c. Should Jones invest in the bulldozer, based on this analysis? , because the bulldozer cost is the present value of the cash flows at the minimum desired rate of return of 6%. d. Determine the number of operating hours such that the present value of cash flows equals the amount to be invested. Round interim calculations and final answer to the nearest whole number. hours