To estimate the number of people in springfield, population 10,000, who have a swimming pool in their backyard, 250 people were interviewed. of those polled, 119 had a swimming pool. how many people in the city might one expect to have a swimming pool?

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?