Answer: 110 square inches.
Step-by-step explanation:
The volume of a rectangular box would be:
[tex]V=length*width*height[/tex]
In this case, we know the volume, the length and the height, and we don't know the width, so we're going to isolate it:
[tex]width=\frac{V}{length*height}[/tex]
Substituting the data:
[tex]width=\frac{330}{11*3} =10in[/tex]
This width is also the width of the top of the box, so the area of the top would be:
[tex]A=length*width\\A=11*10\\A=110in^{2}[/tex]
