Answer: Sandy, do not overlap
Step-by-step explanation:
To find the volume of a rectangle, you use the formula
volume = length x width x height
the height of both rectangles is 8
The height of the top rectangle is 4
So you take the 8-4 to get the height of the bottom rectangle which is 4.
By finding that it shows that Sandy’s volume equation is correct, and the shape shows no signs of overlap.