Aiden had 55 minutes to finish a quiz. He finished early and had 15 and one over 2minutes to read his book while the rest of the class finished their quiz. How long did it take Aiden to complete his quiz written in decimal form?

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.