Michael replaced 1/3 of the buttons on his coat. if he replaced a total of 3 buttons, how many buttons are one his coat?

If 1/3 of all his buttons is 3 buttons, than 3/3 is 9

A) 144.44 sq inches i believe

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.