WYEP is a radio station in Pittsburgh, Pennsylvania, that airs on 91.3 FM. This means it broadcasts at a frequency of 91.3 megahertz, or 91.3x10 7 hertz. What is its wavelength?

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.