The size of a computer monitor is usually measured along the diagonal. an 18-in. rectangular monitor has a height of 9 in. what is the length of base of the monitor, to the nearest tenth of an inch?
i'll report you if you comment some random stuff for points.

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?