Given the following shapes: a right_triangle with base 9 and height 1, a rectangle with width 4 and height 5, a square with side 2. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 9 and height 1: Area = 0.5 x 9 x 1 = 4.5
Rectangle with width 4 and height 5: Area = 4 x 5 = 20
Square with side 2: Area = 2^2 = 4</think>

<answer>28</answer>