Can someone please help me with my Manufacturing Engineering homework on Decision Analysis? If you need more information you can use the Making Hard Decisions with Decision Tools 3rd book

PLEASE ANSWER FOR 6 YEARS NOT FOR 5. 6 YEARS PLEASE!

Project 1,2,3 with a lives of 6 years are being considered with cash flow estimated to be as follows (a) Develop the composite cash flows for each project (5 points) (b) Suppose the MARR is 10%, determine the best alternative using Present Worth analysis, (10 points) (c) Determine the best alternative using Incremental Rate of Return Analysis. (10 points)