For the following please find (f o g)(x) and (g o f)(x). Also please report any shifts or changes in amplitude

Question

f(x) = cos(x), g(x) = 2x + 6

Answer 1

(f o g)(x) is the same as f(g(x))

f(x) = cos(x) and
g(x) = 2x+6

then f(g(x))
= f(2x+6)
= cos(2x+6)

now do g(f(x)) the same way.
let me know what you got.