PLEASE HELP DONT SKIP ANSWER.

Two lines that do not intersect are skew. always sometimes or never

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =