The temperature dropped 20 degrees over the past 4 days. what was the average daily change in temperature.

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

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples