A spherical balloon is being inflated. The volume of the balloon (in cubic centimeters) at time t seconds after starting the inflation is given by V (t )space equals space 2 t space plus space 1 cubic centimeters. The radius of the balloon (in centimeters) as a function of its volume is r (V )space equals space.620 space V to the power of 1 divided by 3 end exponent centimeters. How fast is the radius of the balloon increasing at time t space equals space 3 seconds after starting inflation?