I have screen shot this short-answer question

Richard's preferences over chocolate, c, and money, m, can be represented by the utility function u(c,m) =6c+m+6,u(crc) +,u(mrm) where 7'0 is his chocolate reference point, rm is his money reference point, and the function is dened as a: 5020 M15): 3 - 5m x