3 . In this question , you need to know that the volume of a sphere with radius * is {ITY . Suppose that a machine inflates spherical balloons by

3 . In this question , you need to know that the volume of a sphere with radius * is {ITY .Suppose that a machine inflates spherical balloons by pumping air in at a constant rate of 3 cm / sAt time t = 0 the radius + is zero .( 2 ) [ 1 point ] How much air is in the balloon after 12 seconds ? Include units !CM 3atO120X.( b ) [ 1 point ) What is the radius * of the balloon after 12 seconds ? Include units !CM3 6Oradius is 36 cubic centimetersper second long ?!( C ) 1 3 points ) Find the rate of changeIt of the radius after 12 seconds . Include units !CM ISO{ cm /