The number of gum drops in bags of the same size is normally distributed with a mean of 85 gum drops in a standard deviation of three gum drops. There are 120 bags of gum drops on the shelf. About how many bags of gum drops are expected to have between 82 gum drops and 88 gum drops

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.

52 or what they said ☝️