Given F(x) and G(x), Find the Indicated Composition and State $$f ( x ) = 3 x + 15 , \quad g ( x ) = 2 x - 1$$

Multiple Choice

Given f(x) and g(x) , find the indicated composition and state its domain.
- $$f ( x ) = 3 x + 15 , \quad g ( x ) = 2 x - 1$$
Find $( g \circ f ) ( x )$ .

A) $6 x + 18$ , all real numbers
B) $6 x + 12$ , all real numbers
C) $6 x + 29$ , all real numbers
D) $6 x + 14$ , all real numbers