About pythagorean theorem, really need help!

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.

16 more than the product of 5 and p

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup