The radius of the base of a cone is decreasing at a rate of $2$ centimeters per minute. The height of the cone is fixed at $9$ centimeters. At a certain instant, the radius is $13$ centimeters. **What is the rate of change of the volume of the cone at that instant (in cubic centimeters per minute)?** [[☃ radio 1]] *The volume of a cone with radius $r$ and height $h$ is $\pi r^2\dfrac{h}{3}$.*