HELP PLEASE ILL GIVE BRAINLIEST

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

15 points what is the end behavior of this graph? & what is the asymptote of this graph?