any help?

(b) Given the vector field v = 3xz2i - yzj + (x + 2z)k, calculate the magnitude of the vector V x (V x v) at the point (2, 2, 2). [6 marks] (c) Calculate the flux of the vector field v = yi + yj + 2k through the part of the paraboloid z = 9 - x2 - y? where z > 0. [7 marks]