The area of a rectangular wall of a barn is 40 square feet. its length is 6 feet longer than the width. find the length and width of the wall of the barn.

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?