Given the following shapes: a rectangle with width 5 and height 1, a right_triangle with base 9 and height 3. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Rectangle with width 5 and height 1: Area = 5 x 1 = 5
Right triangle with base 9 and height 3: Area = 0.5 x 9 x 3 = 13.5</think>

<answer>18</answer>