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Is this a polynomial function? i need to know asap

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.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.