The temperatures in the rooms continue to increase at the same rates. At 15 minutes after the heaters were turned on, is the temperature higher in the room containing heater 1 or in the room containing heater 2? What is the difference in temperature between the two rooms? Provide evidence to support your answer.

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.