Answer:
Option B
The volume of the box is 
Step-by-step explanation:
we know that
The volume of the box is equal to the volume of one cubical block multiplied by four
so
Find the volume of one cubical block

therefore
The volume of the box is equal to

Is there multiple choice?
Answer:
9000mm
Step-by-step explanation:
You multiply 9 by 1000 to turn m to mm
<span>yes; the number is written in scientific notation</span>