What is the expression equal to 6?3n-(2+n)

Which of the following contains a variable?

Given: m zade = 60° and m2cdf = (3x + 15) prove: x = 15

Of the 27 players trying out for the school basketball team, 8 are more than 6 feet tall and 7 have good aim. what is the probability that the coach would randomly pick a player over 6 feet tall or a player with a good aim? assume that no players over 6 feet tall have good aim. a. b. c. d.