Find $f(g)(x)$ For the Given Functions $f(x)$ And $g(x)$
- $f(x)=7 x+6$

Multiple Choice

Find ( $f(g) (x)$ for the given functions $f(x)$ and $g(x)$ .
- $f(x) =7 x+6$ and $g(x) =7 x-6$

A) $14 x$
B) 12
C) $49 x-36$
D) $49 x+36$