Answer :
plastic sphere volume=4/3 times pi times rasius^3
4/3 times 3.14 times 18^3=24416.6
rubber ball whole=4/3 times 3.14 times 22^3=44579.6
subtract
44579.6-24416.6=20163
the answer is 20163 in^3
4/3 times 3.14 times 18^3=24416.6
rubber ball whole=4/3 times 3.14 times 22^3=44579.6
subtract
44579.6-24416.6=20163
the answer is 20163 in^3