the elevation of the highest point on Earth is atop mount everest, which is 8.9 kilometers above sea level. the elevation of the lowest point the mariana trench in the pacific ocean, is -10.9 kilometers. what is the difference in elevation of the highest and lowest points?

How much money does ron have left each month after his fixed expenses? ron graduated from college five years ago. he recently bought a house, but shares it with a housemate who pays him $800 a month for rent and utilities. ron is putting a budget worksheet together so he will have a better idea of where his money is going and where he can save. enlarge