How do I right an inequality to find how many months it will take for a bunny population to be greater then 9500 using the quadratic formula -0.4t^2+130t+1200=P
t=months
P= Population

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?