please help me. thanks in advance

1. Use the Divergence Theorem to evaluate the flux F . dS. F(x, y, z) = (zx, 8yx3, x2z) Let S be the surface that bounds the solid region with boundary given by y = 4 - x2 - z2, y = 0. 2. Use the Divergence Theorem to evaluate the flux of the field F(x, y, z) = (3xy, 5yz, 3zx2) through the surface S, where S is the boundary of the cylinder given by x2 + y