DOORMARK CHECK ANSWER
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Vhich situation results in a final value of zero?
^ the overall change in temperature when the temperature goes from -10°F to 10°F
the total profit made when a person buys an item for $2.25 and then sells the item for $2.25
the overall change in altitude of a hot air balloon after rising 21 kilometers from sea level
D the total distance a person travels when he bikes 3.1 miles to school and then bikes 3.1 miles back home