Test due in 2 hours! Will give good review and brainliest. :)

Answer:
circumference =9 volume = 972
Step-by-step explanation:
circumference of sphere =2 π r =18π ; r= 18π/2 π =9
Volume =4/3 *π r^3 =π* 4/3 *9*81 =4*3*81 π =12*81π = 972π Cubic inches
Volume of sphere is=972π
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