Given the following shapes: a right_triangle with base 9 and height 2, a rectangle with width 4 and height 3, a right_triangle with base 5 and height 1, a right_triangle with base 6 and height 7, a right_triangle with base 4 and height 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 2: Area = 0.5 x 9 x 2 = 9.0
Rectangle with width 4 and height 3: Area = 4 x 3 = 12
Right triangle with base 5 and height 1: Area = 0.5 x 5 x 1 = 2.5
Right triangle with base 6 and height 7: Area = 0.5 x 6 x 7 = 21.0
Right triangle with base 4 and height 2: Area = 0.5 x 4 x 2 = 4.0</think>

<answer>48</answer>