Given the following shapes: a rectangle with width 3 and height 6, a right_triangle with base 8 and height 3. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Rectangle with width 3 and height 6: Area = 3 x 6 = 18
Right triangle with base 8 and height 3: Area = 0.5 x 8 x 3 = 12.0</think>

<answer>30</answer>