NPV and IRR: Unequal Annual Net Cash Inflows Rocky Road Company is evaluating a capital expenditure proposal that has the following predicted cash flows. REQUIRED a. Determine the payback period. Note: Round your answer to two decimal places. Enter 1.251 as 1.25; enter 1.255 as 1.26. years b. Using a discount rate of 12%, determine the net present value of the investment proposal. Note: Round your answer to the nearest dollar. 4 c. Determine the proposal's internal rate of return. Note: Round your answer to two decimal places. Enter 10.251% as 10.25%; enter 10.255% as 10.26%. 1%