The vertices of quadrilateralABCD are A(1,2) B(3,5) C(5,2) and D(3,-1). Prove that ABCD is a rhombus. (6 points)

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

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?