use 3.14 help me please

Answer:
V = 339 in³
Step-by-step explanation:
The formula for the volume of a sphere of radius r is V = (4/3)πr³
Here the diameter is 18 m, so the radius must be 9 m, and the volume of the sphere is
V = (4/3)(3.14)(9 m)², or
V = 339 in³