The 24 students in mr. brown's homeroom sold 72 magazine subscriptions. the 28 students in mrs. garcia's homeroom sold 98 subscriptions. whose homeroom sold more magazines subscriptions per student?

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.