Given the following shapes: a right_triangle with base 6 and height 3, a right_triangle with base 8 and height 3, a right_triangle with base 7 and height 1, a trapezoid with bases 4 and 5 and height 2. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 6 and height 3: Area = 0.5 x 6 x 3 = 9.0
Right triangle with base 8 and height 3: Area = 0.5 x 8 x 3 = 12.0
Right triangle with base 7 and height 1: Area = 0.5 x 7 x 1 = 3.5
Trapezoid with bases 4, 5 and height 2: Area = 0.5 x (4 + 5) x 2 = 9.0</think>

<answer>34</answer>