You can put this solution on YOUR website!
Those "5 steps for problem solving" are a mystery to me.
I solve problems my own way, using my own reasoning and not a pre-set recipe.
I believe that using recipes is the wrong way to teach math.
The volume of a rectangular right prism can be calculated as
Volume = length X width X height
If the volume (V, in cubic feet) has to be at least 72 cubic feet, and the height (or thickness) of the slab is x feet,
can be combined to get
So the concrete slab should be at least 3/4 of a foot (9 inches) thick.