I believe it could be either B or D.
Answer:
7
Step-by-step explanation:
Just put the numbers in order the find the number in the middle in the case that there are to numbers add the together then divide by 2
It has 5 sides.
Hope this helps:)
If 317+x=609, then x is 292.
609-317=292 therefore, x is 292.
ANSWER

EXPLANATION
The given expression is

We remove the perfect squares under the radical sign.

We can now take square root of the perfect squares and simplify them further.

This simplifies to:

This further simplifies to:
