Part E If you drew a line segment from the point when Kiley got off the plane to the point when she got in a cab to go to her grandmother’s house, at which point would the line segment end?

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.