please answer with full solution. will upvote

The cash flow diagram below shows the net casf generated (A) every year with initial (I) investment requirement for a certain project whose lifetime is n=8 years with negligible (i.e. zero) salvage value at end of life. It is known that a simple payback period is three (3) years. What is the implied minimum acceptable rate of return (MARR) given this information? (10 pts)