Given the following shapes: a rectangle with width 1 and height 4, a trapezoid with bases 3 and 1 and height 7. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Rectangle with width 1 and height 4: Area = 1 x 4 = 4
Trapezoid with bases 3, 1 and height 7: Area = 0.5 x (3 + 1) x 7 = 14.0</think>

<answer>18</answer>