The ratio of girls to boys in a bicycling club was 2:3 they were 27 boys how many total members were there in the club

There were 18 girls because 27 divided by 3 is 9 so then you do 2 times 9 which is 18 :)

Neither is 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.