The number that should go in the box is 6.
3.60
- 0.65
---------------
2. 9 5
First,

The volume is given by the integral (one of 6 possible combinations),

Answer:
your answer is 0 because it's a horizontal line
2/5 will be shaded in the original how I got it s that you make a rectangle and make fifths inside and shade in 3/5 of that and see what matches up on the top.