Acompany making tires for bikes is concerned about the exact width of their cyclocross tires. the company has a lower specification limit of 22.8 mm and an upper specification limit of 23.2 mm. the standard deviation is 0.15 mm and the mean is 23 mm. what is the process capability index for the process?

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?