I got 7,499. 275+528+750+275+121+(0.03)*185000 = 7499
To explain, I added all the fees first and then took 3%, or 0.03, of 185000 for the commission. I finally added that as well to the original fees to get the final answer.
If each cube represents 1 cubic unit, then the volume will be the number of cubes to make the figure. When you count, there are 5 cubic units. The volume is 5.
