Last month, when joe took his puppy to the veterinarian, the puppy weighed 4.7 pounds. this month, the puppy weighed 6.11 pounds. what is the percentage increase of the weight of the puppy? 23% b. 77% c. 1% d. 30%

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.