The Sand Cruiser is a takeout food store at a popular beachside resort. Teresa Texton, owner of the Sand Cruiser, was deciding how much refrigerator space to devote to four different beverages. Appropriate data on the four beverages follow: Sales price per case Variable cost per case Cases sold per foot of shelf space per day Limeade $22.20 15.90 25 Lemonade Ginger Ale Grape Juice $19.00 $21.50 $46.60 17.80 16.99 36.20 23 6 5 The contribution per foot of shelf space per day for Limeade is