If u know this kind of mathematics please help me I have a discrd/Instag I would appreciate to help me and tell me what to do

I think the answer is 18.0 I’m not sure but I think that’s the answer

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

Hey mate where is the graph