Given the following shapes: a rectangle with width 5 and height 4, a right_triangle with base 7 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 4: Area = 5 x 4 = 20
Right triangle with base 7 and height 3: Area = 0.5 x 7 x 3 = 10.5</think>

<answer>30</answer>