REQ. 4 - is asking you to ignore the possible changes to the sales price of Sedona Stout and reevaluate the original information. Since it is asking you to consider maximizing profit and capacity constraints, you should evaluate contribution margin from more than one dimension, i.e., consider it from the constraints' perspective. It might help to consider all corner points and discuss the benefits/detriments or real-world difficulties surrounding corner points. Also, ask why do we round when doing corner points? If you understand why we round, this will help you answer question 4