Answer:
3
Step-by-step explanation:
P is the in-center
⇒PA=PE=PD because they are in-radius of the in-circle
We know that, tangent segments drawn from a point outside the circle are always equal in length
⇒DK=EK=7.2
In right triangle PKE,
using Pythagoras' Theorem : 
⇒
⇒
⇒
⇒
Therefore, 
X= 4y+4/3yz this is they solution
The answer is C because it's two negatives. Hope that helped
It's 10 - 4
moving decimal over to the right makes a negative exponent.