Please help im confused explain if you can

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

Can someone pls ! pls answer all. no explanation needed..

Solve for n? [tex]z = \frac{3}{4} mn[/tex]