Corresponding angles are any pair of angles each of which is on the same side of one of two lines cut by a transversal and on the same side of the transversal, and angles 3 and 7 were the only angles that matched this criteria.
A percentage can also be represented as a fraction with the denominator of 100. If 80 out of 100 (Fraction Form: ), then 80% of the art club members voted.