Find the area .
Easy points

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

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.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base