Aschool typically sells 500 yearbooks in a year for $50 each. the economics class does a project and discovers that they can sell 125 more yearbooks for every $5 decrease in price. the revenue for year book sales is r(x)+(500+125x)(50-5x). to maximize profit, what prices should the school charge for the yearbooks?

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?

Me with this one question, and i'll upvote the brainliest answer

How to simply and write the answer n a whole number