Are these correct if not what can i do to fix them

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1

Nina has prepared the following two-column proof below. she is given that ∠oln ≅ ∠lno and she is trying to prove that ol ≅ on. triangle oln, where angle oln is congruent to angle lno nina made two errors in the proof. identify and correct the errors.