Given the following shapes: a right_triangle with base 4 and height 8, a trapezoid with bases 3 and 4 and height 4, a trapezoid with bases 3 and 7 and height 2. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 4 and height 8: Area = 0.5 x 4 x 8 = 16.0
Trapezoid with bases 3, 4 and height 4: Area = 0.5 x (3 + 4) x 4 = 14.0
Trapezoid with bases 3, 7 and height 2: Area = 0.5 x (3 + 7) x 2 = 10.0</think>

<answer>40</answer>