Andy has a bag that contains 5 red marbles and 10 blue marbles. he pulls one marble out at random, sets it aside, and then pulls out another. what is the probability that both marbles are red?

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.