F(x)=2x squared +2 can someone tell me the answers

Fred has a total of 62 dvd and cd. if the number of cd is three more than two times the number of dvd, how many cd does he have?

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Which of the following points is collinear with (-2,1) and (0,3)