The volume, V, of a sphere in terms of its radius, r, is given by V (r) = ³. Express & as a function of V, and find the radius of a sphere with volume of 50 cubic feet. Round your answer for the radius to two decimal places. Enclose numerators and denominators in parentheses. For example, (a - b)/(1+n). Include a multiplication sign between symbols. For example, a * T. r(V) = A sphere with volume 50 cubic feet has radius Number feet.