Nando has 2 goldfish. Jill has 5 goldfish Cooper has 2 times as many goldfish as Nando and Jill combined

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

Which table represents points on the graph of h(x) = 3√-x+2?

Can someone tell me if this is perpendicular? !