Im a game with 10 floating ducks, there are 2 ducks with a green dot on the bottom,3with a blue dot and 5 with a red dot. What is the probability of selecting a green duck

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.