Three apples and two oranges cost $3.80, while two apples and one orange costs $2.30 find the cost of an orange.

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.