D is bounded by the plane z = 2y and by y = 4 - x. Evaluate the triple integral with the order dz dy dx. 2y %3D 81 6. -2 21 3. -1 y = 4 x? 2 X. In Exercises 9- 16, a domain D is described by its bounding surfaces, along with a graph. Set up the triple integrals that give the volume of D in all 6 orders of integration, and find the volume of D by evaluating the indicated triple integral.