A convenience store sells two brands of grape juice. Tasty's Grape Juice contains 16 ounces for a price of 2.98. Yummy's Grape Juice contains 20 ounces and is priced at $3.25
Part A: What is the cost per fluid ounce for Tasty's Grape Juice?
Part B: What is the cost per fluid ounce for Yummy's Grape Juice?
Part C: What is the difference in cost, per fluid ounce between the two brands of juice?