Write a real-world problem you could answer by solving the equation -8x+60=28

This is so hard and it’s for a test

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.

Which is the focus of a parabola with equation y2=4x