h each transformation or sequence of transformations to an equivalent transformation or sequence of transformal a 90 counterclockwise rotation about the origin a 180 rotation about the origin a 90 clockwise rotation about the origin a 90 counterclockwise rotation about the origin and then a 180 rotation about the origin a reflection across the x-axis and then a reflection across the y-axis a 90 clockwise rotation about the origin and then a rotation 180 about the origin