Brian brought 16 packs of cola to a party, and each pack had 6 cans. Maria brought 7 cans of juice. How many cans did they bring in all? ​

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.