A person whose eye level is 15 feet above the ground is looking at a building. The angle of elevation to the top of the building is 40º and the angle of depression to the bottom of the building is 15º. What is the height (in feet) of the building? Round your answer to the nearest foot.

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?