5 and 6 .?

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The diameter of a table is 5 feet. what is the circumference

Franco wants to double the volume of the cone. what should he do?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics