HELP ASAP THIS IS DUE IN AN HOUR ! I need these two only to finish please help please!!!
 2 . A pile of sand on the beach has the approximate shape of a cone with a diameter 28 in. and a height of 11.75 in. 
What is the best approximation for the volume of the pile of sand ? 
A) 2411.7 in^3
B) 3617.5 in^3 
C) 7235.1 in^3 
D) 9646.8 in^3