Tyrone takes an 8-by-8 square piece of cardboard and cuts x-by-x squares out of each corner. (All units are inches.) He then folds up the sides to form a box with no top. Which expression represents the surface-area-to-volume ratio? (Hint: for the surface area, find the area of the entire piece of cardboard and subtract the squares that were removed.

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radar · Answer

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From the drawing formula for Volume is (8-2x)(8-2x)(x)   which is length X width X height.