tammy is playing a game where she is trying to roll a three with a standard die. if she gets a three in any of her first 4 rolls , she wins ; otherwise she loses . what is the probability that tammy wins the game ? round your answer to the nearest tenth of a percent .

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.