The Radius of a Right Circular Cone Is Increasing at a Rate

Short Answer

The radius of a right circular cone is increasing at a rate of $5 \mathrm { in } / \mathrm { s }$ while its height is decreasing at a rate of $3.6 \mathrm { in } / \mathrm { s }$ . At what rate is the volume of the cone changing when the radius is $110 \mathrm { in }$ . and the height is 145 in.?