Which expression would be easier to simplify if you used the associative property to change the grouping? O A. 57 + f(-50) + (-50) B. (1.6 + 0.4) - 60 O C. 30 + (70 – 47.5) OD. 3+ (-5)

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.