Final answer:
The price students will end up paying for a soda cannot be determined based on the given information.
Step-by-step explanation:
In this case, since the marginal cost of supplying a soda is 1.50 cents, the price that students will end up paying will depend on factors such as demand, competition, and profitability. However, based solely on the information given, it is not possible to determine the exact price students will pay.