Quadrilateral ABCD is a rectangle with coordinates A (-6, 2), B (-2, 5), C (4,-3), and D (0,-6). What is the perimeter of rectangle ABCD?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

What are the steps to solving the inequality 3b + 8 ≥ 14?

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.