Given the following shapes: a right_triangle with base 1 and height 8, a right_triangle with base 3 and height 4, a trapezoid with bases 7 and 8 and height 3. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 1 and height 8: Area = 0.5 x 1 x 8 = 4.0
Right triangle with base 3 and height 4: Area = 0.5 x 3 x 4 = 6.0
Trapezoid with bases 7, 8 and height 3: Area = 0.5 x (7 + 8) x 3 = 22.5</think>

<answer>32</answer>