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Mathematics, 15.12.2020 15:30 kactus

A submarine is 105 feet below the surface of the water, and it begins to ascend at a rate of 3 feet per minute. After how many minutes will the submarine be 81 feet below the surface?

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A submarine is 105 feet below the surface of the water, and it begins to ascend at a rate of 3 feet...
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