Need help ASAP please

Answer C:  

Step-by-step explanation:

Notice that all the functions look like x plus a constant in the numerator, and x minus the same constant in the denominator.

So we can do a general analysis finding the inverse of a function of the form:

and finding which value of "a" will make

To find the inverse we need to solve for "x" in the equivalent equation:

Then, we see that if , then the expression for

Then the function that verifies this condition is:

168

step-by-step explanation:

i am pretty sure that the answer is 168