The perimeter of a rectangular hall is 120m. If its breadth is 25m, find the length​

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?

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)