a. What do the prices per unit reported in the news clip tell you about the marginal

Question:

a. What do the prices per unit reported in the news clip tell you about the marginal utility from a gallon of gasoline, a 20-oz bottle of Gatorade, and a cartridge of printer ink?
b. How can the paradox of value be used to explain why the fluids listed in the news clip might be less valuable than gasoline, yet far more expensive?