Given the following shapes: a right_triangle with base 6 and height 2, a trapezoid with bases 3 and 6 and height 4, a rectangle with width 2 and height 9. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 6 and height 2: Area = 0.5 x 6 x 2 = 6.0
Trapezoid with bases 3, 6 and height 4: Area = 0.5 x (3 + 6) x 4 = 18.0
Rectangle with width 2 and height 9: Area = 2 x 9 = 18</think>

<answer>42</answer>