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A submarine is at 756 feet below sea level. How many feet will it need to rise to be at the surface?
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A submarine is at 756 feet below sea level. How many feet will it need to rise to be at the surface?

User Slackline
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I think it needs to rise 756 feet since 756 feet below sea level can be thought of as -756 feet above sea level and the serface is 0 feet above sea level.  -756feet+756feet=0feet
User Kolergy
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