posted by alanaR. .
A)a plane flies at the height of 1800 feet directly over 150-foot-tall building. how far above the building is the plane?
B)the same plane then flies directly over a diver who is 80 feet below the surface of the water. how far is the plane above the diver?
C) subtract the divers altitude of -80feet from the plane's altitude of 1800feet