The answer is b because the problem is starting that
Answer:
it equals to 1 ive taken the test multiple times!!!
Answer:
is the right answer.
Step-by-step explanation:
I the function is 

Then we have to find inverse of function f(x).
we will write the equation as 
4y = x + 3
x = 4y - 3
Now we will rewrite the function as

So the answer is 
Finding the perimetre: 7x+4x-3+x=12x-3
Good luck!