1) Jayden is fabricating a customized plastic pool cover. It's 25 m x 11 m and will be 15 cm thick. He'll feed the machine with packages of plastic pellets that are 2.5 m² of material each.

How many packages will he need to make the cover?

2)A room is 17 ft long, 8 ft wide, and 10 ft tall. The entire room needs to be painted, except the floor. What is the surface area to be painted? 3)Three metal discs are to be cut from a sheet of metal 40 cm by 14 cm wide. Each disc (circle) has a diameter of 12 cm. Approximately how much scrap metal will be left over after the discs have been cut out?