In fire fighting a good water stream can be modeled by y equals -0.003x squared +0.62x +3 where x is the waters horizontal distance traveled in feet and why is the corresponding height in feet. if a fire fighter is aiming a good water stream out of buildings window 25 feet above the ground what to distance kind a firefighter stand from the building

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?