Answer:
330 cubic meters
Step-by-step explanation:
A rectangular prism's volume is length * width * height.
The bottom box's volume is 6*8*5 = 240 cubic meters
The top box's volume is 3*5*6 = 90 cubic meters. (6 can be found from the bottom box's width.)
Add the two volumes together to get the total: 330 cubic meters
