Answer:

Step-by-step explanation:




<h3>Hope it is helpful...</h3>
The results of the composite functions are:
<h3>What are composite functions?</h3>
Composite functions are functions that are obtained by combining two or more functions together
Assume that:
Then the computation of the composite functions are as follows:
<h3>Function (f * g)(x)</h3>



<h3>Function f(g(x))</h3>
We have: 
This gives

So, we have:


<h3>Function g(f(x))</h3>
We have: 
This gives

So, we have:


Read more about composite functions at:
brainly.com/question/10687170
I want to say the third option but dont trust my opinion
Answer:
x^2+6x+9
Step-by-step explanation:
expand the expression
top middle, square, and right triangle. to find perimeter you simply add all of the side lengths :)