Liam is setting up folding chairs for a meeting. if he arranges the chairs in 7 row of the same length, he has 5 chairs left over. if he arranges the chair in 5 rows of that same length, he has 17 left over. how many chairs does liam have.

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.