Answer:

Step-by-step explanation:
You can break the figure into 2 sections; one with the dimensions of 4, 5 and 7; the other with dimensions of 14.5, 5, and 12.
Multiply the first three dimensions (4, 5 and 7) to get 140 ft cubed.
Multiply the last three dimensions (14.5, 5, and 12) to get 870 ft cubed.
Now, just add both volumes together to get 1,010 ft cubed!
Hope that helps and maybe earns a brainliest!
Have a great day! :)