Answer:
The volume of a sphere is given by the formula V = (4/3)πr^3, where r is the radius of the sphere. If a spherical balloon has a radius of 165 mm, then the volume of air used to fill the balloon is V = (4/3)π(165)^3 = 18805165.33 cubic millimeters or approximately 18805165.33 mL.
Explanation: