12.

The answer would most likely be 5.11 or 11.5
The volume of the pyramid is 432ft3.
Step by step: 4 divided by 56
because the 4 represents how many sides of the shape .
and 56 is the total of the rectangle prism .
and u won’t multiply because u can’t get a bigger number than the total .
Answer: 14
Hope this helps !
By using green to find the pink locate all the ponies