What's the answer to the question

What’s the domain of this function? fastttt

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

For the inequality |c| < |d| to be true, which of the following must be true?