A quadirateral has vertices at (-2, 1), (0, 4), (5, 2) and (1, -1). Do the diagonals have the same midpoint? Justify your answer. PLEASE FAST I HAVE TO SUBMIT THIS WORK THIS HOUR !! I'LL MARK YOU AS BRAINLIEST I SWEAR :((

What is the slope of the line shown below?

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?

Which of the following can be used to explain a statement in a geometric proof?