Answer:
ASA Hope this helped brainlest pls almost lvled up
Step-by-step explanation:
No, for example, if you had the prime number 23, and you switched the numbers around, it is 32. 32 is not a prime number.
Answer: 
This is the same as saying 18*sqrt(2) or you could say 18√2
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Explanation:
We'll be using this square root rule: 
So we could have this as our steps:

Therefore, 
The basic idea is to first combine the roots using that rule. From there, we factor the radicand such that we pull out the largest perfect square factor. This will allow us to break the root apart and fully simplify it.
R is greater then or equal to18