I think this is the answer
He did not perform enough trials. The more trials you perform, the closer it gets to the predicted outcome.
2x+4y=8
-2x -2x
4y=-2x+8
/4 /4 /4
y=-1/2x+2
To make an equation that solves for the height as according to the volume of a pyramid, you must isolate the variable h on one side.
The first thing you have to do is to multiply both sides by 3 to get 3V=Bh.
Then, divide both sides by B to get your answer as h=3V/B.