james scored 30 out of 90 in a music test. he scored 48 out of 150 in drama test scored 35 out of 120 in an art test. in which test james score the highest

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.