Sketch the region of integration and evaluate the following integral. 7xy dA; R is bounded by y = 3 -x, y= 0, and x = 9 - y" in the first quadrant. R Sketch the region R. Choose the correct graph below. O A. B. O C. O D. O Ay O X X X Evaluate the integral. [ 1 7xy dA = 0 R (Simplify your answer. Type an integer or a fraction.)Sketch the region of integration and evaluate the following integral. 12x2 dA; R is bounded by y = 0, y = 6x + 12, and y = 3x3. R Sketch the region of integration. Choose the correct graph below. O A. VB. O C. O D. AY Ay Ay 25 O 25 O X X Evaluate the integral. 1 1 12X 2 dA = ] RSketch the region of integration and evaluate the following integral, where R is bounded by y = | x| and y = 2. (2X + 4y) dA R Choose the correct sketch of the region below. O A. B. O C. O D. O AY 3- 3- O Evaluate the integral. (2x + 4y) dA = (Simplify your answer.) R