Given the following shapes: a right_triangle with base 6 and height 5, a trapezoid with bases 3 and 7 and height 4. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 6 and height 5: Area = 0.5 x 6 x 5 = 15.0
Trapezoid with bases 3, 7 and height 4: Area = 0.5 x (3 + 7) x 4 = 20.0</think>

<answer>35</answer>