Answer:
I have this same question on my math test.
Since the <em>radius is 9</em>, the diameter is 18.
The shape is being <em>dilated by 2/3, so the new radius is 6</em>.
Volume formula: V = 4/3πr^3
So now we plug in the values.
V = 4/3 x π x (6)^3
V = 4/3 x π x 216
V = 288π
If the answers <em>do not</em> have the pi symbol present, then it <em>has been multiplied into the answer.</em>
288 x 3.14 = 904.32
The new volume of the sphere is 904.32 in^3