Answer:
She isn't correct because after you find the common denominator, the numerator needs to be changed as well, so when she multiplied the denominator of 2/3 by 4 to get 12, she also had to multiply the 2 by 4, to get 8/12, and then subtracted, because otherwise, the new fraction isn't equivalent to the original fraction.
The answer is A. Alternate exterior
Range is the difference beteeen the smallest and largest numbers in a set.
Therefore, 50-32=18
The Figures that are shown in the diagram are
Ray CD
and
Segment CD
