Posted by **Cherie** on Wednesday, October 31, 2012 at 11:59am.

A dock is 7 3/4m high. The portion of the dock above water one day was measured at 2 2/5 m high. How much of the dock structure was below water that day?

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**Ms. Sue**, Wednesday, October 31, 2012 at 12:02pm
7.75 - 2.4 = ?

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