Answer:
Step-by-step explanation:
I think you misses attaching the photo, so plz have a look at mine, it may fit your question.
Here is my answer:
We need to find the volume of step 1: 6*9*10 = 540
The volume of step 2 = 5*6*10 = 300
So the volume of the steps = 540 + 300 = 840 cubic inch
