Compute $\sqrt{64} + \sqrt{225} - \sqrt{64 + 225}$.

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

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

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles