Chris leblanc estimates that if he does 5.25 hours of research using data that will cost $ 78.00, there is a good chance that he can improve his expected return on a $ 10 comma 000, 1-year investment from 7.5 % to 10.4 %. chris feels that he must earn at least $ 21.00 per hour on the time he devotes to his research. hris leblanc estimates that if he does 5.25 hours of research using data that will cost $ 78.00, there is a good chance that he can improve his expected return on a $ 10 comma 000, 1-year investment from 7.5 % to 10.4 %. chris feels that he must earn at least $ 21.00 per hour on the time he devotes to his research. a. find the cost of chris's research. b. by how much (in dollars) will chris's return increase as a result of the research? c. on a strict economic basis, should chris perform the proposed research?