Help me pls i need lots of help pls

The table respent two linear functions the equation respented by the first tables is given

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

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15