Given the following shapes: a trapezoid with bases 4 and 6 and height 2, a right_triangle with base 9 and height 2, a trapezoid with bases 8 and 8 and height 1, 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>Trapezoid with bases 4, 6 and height 2: Area = 0.5 x (4 + 6) x 2 = 10.0
Right triangle with base 9 and height 2: Area = 0.5 x 9 x 2 = 9.0
Trapezoid with bases 8, 8 and height 1: Area = 0.5 x (8 + 8) x 1 = 8.0
Right triangle with base 1 and height 7: Area = 0.5 x 1 x 7 = 3.5</think>

<answer>30</answer>