To determine how much each student owes, follow these steps:

1. Add up the total expenses: $26.38 + 78.92 + 34.50 = 139.80$ So, the total cost is $139.80.

2. Divide the total cost by the number of students: $\frac{139.80}{15} = 9.32$ So, each student owes $9.32.

The correct answer is C: $9.32.

Would you like further details or have any questions?

Here are 5 related questions to consider:

1. How would the cost per person change if there were 20 students instead?
2. If one student contributed an additional $5, how much would the remaining students owe?
3. What would be the cost per person if the class spent an extra $50 on entertainment?
4. If two students decided not to contribute, how much would each of the remaining students owe?
5. How much would each student owe if the total cost was reduced by a 10% discount?

Tip: To split costs evenly, always divide the total amount by the number of contributors.