in a survery of 1000 families it was found that 710 drink tea with breakfast while 230 drink coffee. the families who drink both tea and coffee are half in number compared with those who drink neither tee. what's the number of families who drink both tea and coffee?​

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?