A bird flies from the bottom of a canyon that is 72 2/5 feet below sea level to a nest that is 721 4/5 feet above sea level. What is the difference in elevation between the bottom of the canyon and the bird's nest?
+37146 B flies from 72 2/5 feet below ....up too sea level and continues up to 721 4/5 ft above sea level
72 2/5 + 721 4/5 = .......... ft
