Pls solve ASAP...

(1 point) Suppose 15" is a vector field with div(f(x, y, 2)) = 7. Use the divergence theorem to calculate the flux of the vector field 13" out of the closed, outward-oriented cylindrical surface S of height 7 and radius 2 that is centered about the z-axis with its base in the xy-plane. f/IMA': S (1 point) Find positive numbers a and b so that the change of variables 5 = ax, t = by transforms the integral f [1: dx dy into /' f 0(x, y) T 0(5, 1) for the region R, the elliptical region x2/36 + y2/25 S 1 and the region T. the circle 52 + t2 = 1. ldsdt 1mg - 60w) - 4 9 What Is 0W) In thlS case. 3(x,y) _ am) _