(40 points) A pile of gravel in a quarry is forming at the end of a conveyor. The pile is forming the shape of a cone with a height of 4 feet and a circumference of 36 feet. The gravel has a value of $0.99 per cubic foot. What is the value of the pile?
Use 3.14 for π.
Round your answer to the nearest hundredth. and show all work