RPM Question


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Tide

-10123timenoonmidnightheight of tide5 a.m.-0.5 ftnoon2.2 ft6 p.m.0.1 ftTides at Ocean City on March 17
The graph above shows the height of the tide, in feet, above or below a baseline. Which of the following is closest to the difference, in feet, between the heights of the highest and lowest tides on March 17 at Ocean City?
A. 2.8
B. 2.1
C. 2.7
D. 3.1
E. 1.7