Which of the following does NOT show a pair of equivalent ratios? A. 3/7 , 9/21 B. 3/7 , 9/38 C. 24/56 , 3/7 D. 3/7 , 12/28

Aline graph should be used

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.