Find the vertical distance traveled by the submarine, Three hours ago was at -725.6, and now is at -314.9?

Anyone know? is appreciated! will mark brainliest if correct!

1. are the corresponding angles congruent 2. find the ratios of the corresponding sides 3. is triangle jkl congruent to triangle rst? if so what is the scale factor

Suppose medical records indicate that the length of newborn babies (in inches) is normally distributed with a mean of 20 and a standard deviation of 2.6. find the probability that a given infant is between 14.8 and 25.2 inches long.