What is 1997 from 2014

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

How do you write a paragraph proof to prove that the corresponding angles shown are congruent