Question

Please HELP! Find (fog)(2) and (f+g)(2) when f(x)=1/x and g(x)=4x+9

Answer 1

$(f\circ g)(2)=\dfrac{1}{4\cdot2+9}=\dfrac{1}{17}\\\\ (f+g)(2)=\dfrac{1}{2}+4\cdot2+9=\dfrac{1}{2}+17=17\dfrac{1}{2}$