Suppose you have a normally distributed set of data pertaining to a standardized test. the mean score is 500 and the standard deviation is 100. what is the z-score of 450 point score? 1.5 1 0.5 -0.5

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?