A movie theater sends out a coupon for 80% off the price of a ticket. Write an equation for the situation, where y is the price of the ticket with the coupon, and x is the original price of the ticket. Use a pencil and paper. Draw a graph of the equation and explain why the line should only be in the first quadrant.

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?

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?