Answer:
#3) (4/3) pi r^3
(4/3) pi 4^3
(4/3) pi 64
volume = 21.333pi cm^3
#4) (4/3) pi r^3
(4/3) pi 14^3
(4/3) pi 2744
volume = 3658.666pi cm^3
Step-by-step explanation:
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