Given the following shapes: a rectangle with width 1 and height 3, a trapezoid with bases 9 and 3 and height 6, a right_triangle with base 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 3: Area = 1 x 3 = 3
Trapezoid with bases 9, 3 and height 6: Area = 0.5 x (9 + 3) x 6 = 36.0
Right triangle with base 1 and height 7: Area = 0.5 x 1 x 7 = 3.5</think>

<answer>42</answer>