A certain cube floating in a bucket of water has between 70 and 85 percent of its volume below the surface of the water. If between 8 and 20 cubic centimeters of the cube's volume is above the surface of the water, then the length of a side of the cube is approximately	Choose the correct choice from the following options:
A) 4	B) 5	C) 7	D) 8	E) 9
If sides are 7, vol=7^3=343   70%= 240.1, 85%=291.55   so vol above water, between 102.9 and 51.45 --&gt;too big   If side are 4, vol = 64   70%=44.8, 85%=54.4   vol above water between 19.2 and 9.6   So 4 should be the answer.   Check option C,   If sides are 5, vol = 125   70%= 87.5, .85%=106.25   vol above water between 18.75-37.5   (Sides are 4 cubic centimeters)   4
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A certain cube floating in a bucket of water has between 70 and 85 percent of its volume below the surface of the water. If between 8 and 20 cubic centimeters of the cube's volume is above the surface of the water, then the length of a side of the cube is approximately