Can someone help me please

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

Find the roots of the equation below. x^2 - 6 + 9 = 0

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