Acake is cut into 18 pieces. one-half of the cake has been eaten. a friend takes 5 of the remaining pieces of cake home for her family. what fraction of the cake is left? simplify, if necessary. show your work.

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.

The answer is 9.7 cm