I NEED HELP ASAP PLZZ GIVING BRIANLIEST AND POINTS

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

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

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?