Given the following shapes: a right_triangle with base 4 and height 1, a rectangle with width 5 and height 9. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 4 and height 1: Area = 0.5 x 4 x 1 = 2.0
Rectangle with width 5 and height 9: Area = 5 x 9 = 45</think>

<answer>47</answer>