What is the width of a rectangle with an area of 300 square feet if it's length is 1 foot?

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

I’m confused on how to work the pie charts