12. g( f(x)) .

Question

 g(x) = 2x + 1, and h(x) = — x − 10 5 . 

Answer 1

I am assuming you really want g(h(x))?

If so, then g(h(x)) = 2(-x-105) +1 , that is, -2x-209. Surely there must be an error in the question since this is SO simple.