Answer:
16
Step-by-step explanation:
Start by adding 9 to both sides, obtaining: √(x + 9) = 5.
Square both sides, obtaining: x + 9 = 25.
Subtract 9 from both sides: x = 16
Note that √(16+9) - 9 = -4, as required.
It's B and C
hope this helps
Answer:
The total length of the border is 
Step-by-step explanation:
we know that
The circumference of a circle is equal to

we have

assume

substitute

10x10x10x10x10
These Extra letters mean nothing difufnfhvhfjfjdjfjggybjfjffjfj
According to my examination I have confirmed that I do NOT repeat do NOT know the answer to this question. Good luck!