Given the following shapes: a rectangle with width 2 and height 1, a right_triangle with base 4 and height 9. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Rectangle with width 2 and height 1: Area = 2 x 1 = 2
Right triangle with base 4 and height 9: Area = 0.5 x 4 x 9 = 18.0</think>

<answer>20</answer>