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

<answer>24</answer>