Answer:
or 
Step-by-step explanation:
step 1
Find the volume of the rectangular prism
we know that
The volume of a rectangular prism is

In this problem we have



substitute in the formula

step 2
Find the difference between the volume of the prism and the volume of the storage container


A and D are correct. If u don't know why look up the definitions of the triangles
1007623 is the answer because 442680 plus 564943 is 1007623