For the Pair of Functions, Determine the Domain of F $$f ( x ) = 3 x - 9 , g ( x ) = \frac { 5 } { x + 7 }$$

Multiple Choice

For the pair of functions, determine the domain of f + g.
- $$f ( x ) = 3 x - 9 , g ( x ) = \frac { 5 } { x + 7 }$$

A) $( 0 , \infty )$
B) $( \infty , - 7 )$ or $( - 7 , \infty )$
C) $( \infty , \infty )$
D) $( \infty , - 5 )$ or $( - 5 , \infty )$