Math homework questions

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

What is always true about a positive integer raised to a negative odd power?

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.