The tickets sold on a train ride are decided into 2 categories, premiere seats and economic seats. The premiere seats cost $120 each. The economic seats cost $75 each. There are 375 premiere seats and x economical seats on a train. What is the number of economic seats?

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.