answer for B,C, and D

For f(x) =x and g(x) = x +5, find the following composite functions and state the domain of each. (a) fog (b) gof (c) fof (d) gog (a) (fog)(x) = x#+ 10x +25 (Simplify your answer.) Select the correct choice below and fill in any answer boxes within your choice. O A. The domain of fog is x }. (Type an inequality. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as nee B. The domain of fog is all real numbers. (b) (g o f ) (x) = (Simplify your answer.)