an outdoor swimming pool cost $7.50 per day to visit during the summer. there is also a $40 yearly registration fee. is the total cost proportional to the total cost proportional to the total number of days visited.

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.