Answer:

Step-by-step explanation:
To find the inverse of a function, swap the places of the x and y variables and solve for y again.

Answer:
C. 18
Step-by-step explanation:
96 divided by 6 = 16
16+2=18
Answer:
3 < x < 27
Step-by-step explanation:
We can't tell what "must ne greater" means, so we'll tell you the limits on the side length and you can choose the one that is relevant.
The third side of a triangle must have a length that lies between the difference and sum of the two lengths you know.
15 -12 = 3
15 +12 = 27
The value of x must be between 3 and 27:
3 < x < 27
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If you allow the triangle to have zero area, then x can be 3 or 27. Many authors claim such a "triangle" is not allowed, so don't allow those cases.