Free points since I am extremely bored

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

Acircle has a circumference of 28.36 units what is the diameter of the circle

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?