What kind of polygon is bounded by the line segments passing through points A, D, C, and E? What is the sum of the interior angle measures for
this polygon?

This is so hard and it’s for a test

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827