Jane is 5 times as old as her sister. in 3 years jane will be twice as old as her sister. how old are they now?

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

See attachment below and find the equivalent of tan(∠qsr)