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6 votes
6 votes
Robbie is 5 feet tall is the near the sea shore on top of a Sandune that had an elevation of 6 feet

User Mallow
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1 Answer

27 votes
27 votes

we have that

0 represents sea level

+6 represents the top of the sand dune

+11 represents the top of Robbie's head

the answer is the first option

User Mingjiang Shi
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2.9k points