A company wants to study how consumers would rate Internet service providers (ISPs) based on the size of files that they download. The following equations model the relationship between two variables from the result of a survey conducted in North America, Europe, and Asia. In the equations, is the size of files to be downloaded (in megabytes), () is the average ratings in North America (in percent), () is the average ratings in Europe (in percent), and () is the average ratings in Asia (in percent). The consumer ratings can range from 0% (unsatisfactory) to 100% (excellent). . (n.d.). Retrieved from https://www.desmos.com/. (n.d.). Retrieved from the Graph Web site: http://www.padowan.dk/. (n.d.). Retrieved from the Microsoft Web site: https://www.microsoft.com/en-us/default.aspx