A picture frame measures 28 in. by 20 in., and 240 in.^2 of the picture shows. Find the width of the frame. I got 4in. for my answer, but the book is telling me that it's 1.4 but I don't know how to get that answer.

Module 10 coordinate proof using slope and distance answers is quadrilateral abcd a parallelogram? explain how you know.

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?