In a deck of 52 playing cards, there are 12 face cards (4 Jacks, 4 Queens, 4 Kings). If you draw cards one at a time, replacing and shuffling the cards
between draws, what's the probability of getting your first face card on the
third draw? Choose the best 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.