Can someone help me with this math homework please!

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Given the graphed function below which of the following orders pairs are found on the inverse function

Will give let f(x)=2x and g(x)=[tex]2^{x}[/tex] graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ? enter your answers in the boxes x=[? ] or x=[? ]