Answer:
its the 4th one . The one all the way to the bottom
Step-by-step explanation:
<span>What is 6 [4•(72-63)÷3]?
</span><span>6 [4•(72-63)÷3]
</span>
=72
V=900m³
V=L*w*h
V=20*3*w
V=60*w
60*w=900
w=900/60
w=15m
Answer:

<h2>-1 is the right answer.</h2>