1. For problem 14.6, what is the project's payback period? 2. For problem 14.8, what is the project's net operating cash flow for year 1? 3. For problem 14.8, what is the project's depreciation expense for year 2? 4. For problem 14.8, what is the project's net cash flow for year 3? 5. For problem 14.11, what is the payback period for Project X