Dave and Sandy Hartranft are frequent flyers with a particular airline. They often fly from City A to City B, a distance of 732 miles. On one particular trip, they fly into the wind, and the flight takes 2 hours. The return trip, with the wind behind them, only takes 1 1/2 hours. If the wind speed is the same on each trip, find the speed of the wind and find the speed of the plane in still air.

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?