The bike shop rents bikes for 10$ plus 4$ per hour. You paid 30$ to rent a bike. For how many hours did you rent the bike?

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 upper quartile in the box plot?

It says factor each expression 49x-28?