If you have a floor that is 8 wide and 9 feet long and you by a rug that is 8 feet wide and 5 feet long how much of the floor will not be covered

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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 of the following is the best first step in solving the equation below? 4+2㏒³x=17