SOLUTION: Nina is on a cliff that is 30 feet above sea level,getting ready to dive.The floor of the lagoon is 10 feet below sea level.How many feet separate Nina from the bottom of the lagoo

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 Question 193843: Nina is on a cliff that is 30 feet above sea level,getting ready to dive.The floor of the lagoon is 10 feet below sea level.How many feet separate Nina from the bottom of the lagoon?Answer by solver91311(16897)   (Show Source): You can put this solution on YOUR website! Put one finger on the number line at -10. Put the other finger on the number line at +30. How many units are between your fingers? John