Please help me!! (30 POINTS!)

1. Consider this sequence of
performed on shape I: dilation by a scale factor of 2. followed by a reflection across the x-ads, and then a translation left 1 unit. Does the sequence prove that shapes I and IV are similar? Explain your answer.

2. Consider this sequence of transformations applied to shape II: a 90 degree clockwise rotation about the origin, followed by a translation 9 units down and 9 units left, then a dilation by a scale factor of 2. Does applying this sequence of transformations to shape II prove that shapes II and III are similar? Explain your answer.