Can anyone help with this? will give brainliest thx

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth