12 feet by 8 feet is how many square yards?

12 x 8 = 96 square feet

1 square yard = 9 square feet
96/9
= 10 6/9
= 10 2/3 square yards  (10 and 2/3)
or
10.6667 square yards

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.