Think about what the graph would look like.
Try making a table if you do not remember what the graph looks like.

f(g(x)) is the same as f(x − 10). Why?
Find f(x − 10).

See the hint in part (a).

f(g(x)) is the same as f(x − 10).

$g(f(x)) \text{ is the same as } g\left(\sqrt{(x + 3)}\right).$

Will these yield the same function?