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Mathematics, 10.09.2019 21:30 jdisalle7486

Manuel bought a balloon (that is a perfect sphere) with a radius of 2 cm. he wanted his balloon to be bigger, so
he blew 2 big breaths of air into the balloon. each big breath increased the balloon's radius by 1 cm.
what is the ratio of the current volume of the balloon to the original volume of the balloon?
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