If it takes 3.5 hours to travel 280 miles, what is your average speed?

answer

c, on a nylon carpet in a dry area. give me brainliest

explanation:

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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