Simplify: \(\frac{\sqrt{2.5^2-0.7^2}}{2.7-2.5}\).
\(\frac{\sqrt{2.5^2 - 0.7^2}}{2.7 - 2.5} =\frac{\sqrt{(5.76)}}{0.2} = \frac{2.4}{0.2} = \boxed{12}\)
+1223 
