Answer:
4500
or 4712.39
What we need to know: The formula for the volume of a cone is: 
So we are solving for V
Step-by-step explanation:
1) Radius is half of diameter r=30/2 thus, your radius is 15
2) you then have all your variables so you can start plugging values into your equation:
r=15 h=60

This would be your exact answer but if you are solving for a rounded answer it would be
V~4712.39
Answer:
$10.50, the difference is $4.50
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