Why is 1 not a prime number and why would any negative number not be considered prime?

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?

Suppose your sat score is 2040. a college with an average sat score for admintted students of which of these would most likely be your best option?