What is the distance between S( -9, 8) & T(8 , -6) ?

3. find the radius of circle p.4. find y.

With #! i’ve tried to figure it out but i can’t.

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?