A retailer planned to buy some computers from a total of sh 1800000. Before the retailer could buy the computers the price per unit was reduced by sh 4000. This reduction in price enabled the retailer to buy five more computers using the same amount of money as originally planned. Determine the number of computers the retailer bought.

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?