20.2 is the perfect answer
well, rational = fractional, namely something you can write as a fraction, well, anything between -1 and -2 is just less than -1 so

Answer:
d
Step-by-step explanation:
-10=-5*2; 4=2*2
l-10+3l= 7; l4+3l=7
For this case we have the following functions:

We must find
By definition of composition of functions we have:

So:
![(p-9) (x) = x ^ 2-1- [5 (x-1)] = (x ^ 2-1) -5 (x-1)](https://tex.z-dn.net/?f=%28p-9%29%20%28x%29%20%3D%20x%20%5E%202-1-%20%5B5%20%28x-1%29%5D%20%3D%20%28x%20%5E%202-1%29%20-5%20%28x-1%29)
Thus, the correct option is option C.
Answer:

Option C