Given the following shapes: a square with side 2, a right_triangle with base 3 and height 1, a rectangle with width 3 and height 5. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Square with side 2: Area = 2^2 = 4
Right triangle with base 3 and height 1: Area = 0.5 x 3 x 1 = 1.5
Rectangle with width 3 and height 5: Area = 3 x 5 = 15</think>

<answer>20</answer>