Question 1102119
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The bottom of the box will be the original piece of cardboard with a 5-inch square cut out of each corner.  With a 5-inch square cut out of each corner, the dimensions of the bottom of the box will be 120-10=110 inches and 85-10=75 inches.<br>
And when the sides are folded up, the height of the box will be the 5 inches.<br>
So the dimensions of the box are 110x75x5, and the volume is {{{110*75*5 = 41250}}}