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Tomas works as an underwater photographer. He starts at a position that is 13 feet below sea level. He rises 6 feet, then descends 15 feet to take a photo of a coral reef. Enter an expression to find his position relative to sea level when he took the photo and then evaluate the expression.

User Thewheat
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1 Answer

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Think of sea level as 0 on number line

-13 + 6 - 15
User Rvrvrv
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