Calculate the total number of machine hours needed to produce enough units to meet the sales demand for the two products Total number of machine hours eTextbook and Media Attempts: 1 of 5 used (b) How should Sarah allocate the 10,500 available machine haurs between the two products so that Blassom maximizes its profits? eTextbook and Media Attempts: 1 of 5 used (c) What tatal contribution margin will Blossom realize based on your answer to part b