Question 165400
r= ((.75(32(pi))/3)/pi)^1/3  simplify by inverting and multiplying pi to get  .75(32(pi)*1/3(pi))^1/3 cancel the pi's in denominator and numerator and you get .75(32/3)^1/3 which is (24/3)^1/3
which is (8)^1/3 which is 2    r=2