To solve the problem, let's define the variables:
- Let \( x \) represent the number of tickets (students).
- \( y \) will represent the total cost.
The total cost equation can be set up as follows:
\[ y = 50 + 15x \]
For a class of 25 students, we will substitute \( x = 25 \) into the equation:
\[ y = 50 + 15(25) \] \[ y = 50 + 375 \] \[ y = 425 \]
Thus, the total cost for a class of 25 students to see The Nutcracker would be $425.00.
The correct answer is:
$425.00.