A window shaped like a parallelogram has an area of 44 1/5

square feet. The height of the window is 5

1/5

feet. How long is the base of the window?

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.