How did I get a 2 here (simplifying ratios)

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 me out here and the tell me the greatest common factor

How much orange juice do you need to make 2 servings of lemony orange slush?