Use the following information for this question and questions 9 thru 12. the production planner for a private label soft drink maker is planning the production of two soft drinks: root beer (r) and sassafras soda (s). two resources are constrained: production time (t), of which she has at most 12 hours per day; and carbonated water (w), of which she can get at most 1500 gallons per day. a case of root beer requires 2 minutes of time and 5 gallons of water to produce, while a case of sassafras soda requires 3 minutes of time and 5 gallons of water. profits for the root beer are $6.00 per case, and profits for the sassafras soda are $4.00 per case. what is the objective function?