Suppose you are planning to sample cat owners to determine the average number of cans of cat food they purchase monthly. the following standards have been set: a confidence level of 99 percent and an error of less than 5 units. past research has indicated that the standard deviation should be 6 units. what is the final sample required?

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?