Can anyone please help me with this question?

[WIFILitwak]

I'm doing an asynchronous test and there's a question that I am super stuck on. I need to find the width of a rectangular prism that has 2 sides that are 2 feet long and all sides are 4 feet high before I find the volume, which is the main question. But the internet says I can't find a way to find width without the volume, which I don't know what it is yet! Can anyone get me out of this sticky situation?

 

[tkhunny]

How did "the Internet" say that?

2 ft * 4 ft * x ft = Volume ft^3

It appears "the Internet" is correct.