The coach of a tennis team is holding tryouts and can take only
2
more players for the team. there are
7
players trying out. how many different groups of
2
players could possibly be chosen?

Atest consists of 10 multiple choice questions, each with 5 possible answers, one of which is correct. to pass the test a student must get 60% or better on the test. if a student randomly guesses, what is the probability that the student will pass the test?