Answer: 3x+2/3
Step-by-step explanation: Given that f(x)=x-1/3 and g(x)=3x+1
(fog)(x) is the composition of the functions f and g.
(fog)(x)=f(g(x))
=f(3x+1) (In the function f(x) where there is x we substitute the x by
3x+1) so that
(fog)(x) =3x+1-1/3
=3x+2/3