Plz help me i rly need it

What numbers are included in the set of integers? what numbers are not included?

Find the solution to this system 2,1 1,-2 1,2 -1,2

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.