Answer:
2,001 cubic feet
Step-by-step explanation:
This is because the length is 29, and the width is 23, so you would multiply them together to get 667.
29*23=667
Because it has to be at least 3 ft thick, we need to multiply 667 by three because there are 3 layers. Then you would get 2,001 cubic feet
667*3= 2,001
