Can Anybody Help (Geometry Work) Find The Value Of X.

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

How does percent markup and percent discount relate to percent of change?

Of . 3x+4y+3z=5, 2x+2y+3z=5 5x+6y+7z=7