I need help The graph of a proportional relationship constrains the point (20,4) . What is the corresponding ? Enter your answer as a fraction in simplest form

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?

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Use the irregular polygon below. show all work. a. find the perimeter. b. find the area. the angles of the irregular polygon is 2, 8, 8, and 4.