Astatistics professor would like to build a model relating student scores on the first test to the scores on the second test. the test scores from a random sample of
21 students who have previously taken the course are given in the table.

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?