Ajet flying at an altitude of 30000 ft passes over a small plane flying at 15000 feet headed in the same direction the jets flying twice as fast as a small plane and 45 minutes later they are 450 miles apart find the speed of each plane

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?