I need help pls anyone I’m not the best at math :/

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

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).

Which of these could you find on a credit report? check all that apply. previous address current employer highest level of education completed bankruptcy and a civil court case monthly income late credit card payments