I just got confused with angle AED which I need to find the value of?

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

If 25% of y is 30, what is 60% of y?

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?