PLEASE HELP

If y = 72 when x = 8, find x when y = 63

#12 find the value of x. #13 find the value of the variable.

3. solve the given inequality and graph the solution on a number line.

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