Quotient of polynomial 85-68x/4x-5

Asphere has a diameter of 10 in. what is the volume of the sphere?

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

Ineed no it anyone can see this