Given:
[tex]\begin{gathered} f(x)=3x+2 \\ g(x)=x^2-x \end{gathered}[/tex]Therefore,
[tex]\begin{gathered} g(3b)=(3b)^2-(3b)=9b^2-3b \\ f(2)+1=3(2)+2+1=6+2+1=9 \end{gathered}[/tex]Hence, the answers are
[tex]\begin{gathered} g(3b)=9b^2-3b \\ f(2)=9 \end{gathered}[/tex]