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Martina begins a dive at sea level. She dives down 20 feet, and then rises 7 feet. She dives again, going down 9 more feet. How far below sea level is Martina? Martina is feet below sea level.+
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Martina begins a dive at sea level. She dives down 20 feet, and then rises 7 feet. She dives again, going down 9 more feet. How far below sea level is Martina? Martina is feet below sea level.+

User Adeel Ansari
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Martina is 22 feet below sea level
User Shimi Shimson
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