A pvc Plumbing pipe has a length of 6m and a diameter of 10cm it’s inner diameter is 9cm. Determine the amount of pvc needed to make the pipe

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.