The net below shows the dimensions of Michelle's living room. She is going to put wallpaper on the living room walls What is the difference, in square yards, between the total and lateral areas of the room.

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?