The production manager for the cool soda company is considering the production of two kinds of sodas: regular and diet. two of his resources are production time (8 hours = 480 minutes per day) and syrup (1 of the ingredients) limited to 675 gallons per day. to produce a regular case requires 2 minutes and 5 gallons of syrup, while a diet case needs 4 minutes and 3 gallons of syrup. profits for regular soft drink are $3.00 per case and profits for diet soft drink are $2.00 per case. what is the time constraint?
1) 2R + 4D (<=) 480 2) 2D + 4R (<=) 480 3) 2R + 3D (<=) 480 4) 3R + 2D (<=) 480.