Liam's bookstore sold 40 notebooks and 20 newspapers for a total of $130dollar sign, 130. a day later, the bookstore sold 8 notebooks and 4 newspapers at the same prices, for a total of $28dollar sign, 28. how much does a notebook and a newspaper cost at liam's bookstore?

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?