The answer is: [D]: 105 km³ .
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The volume of the figure shown in the drawing is: 105 km³ .
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Explanation:
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To calculate the following of the figure in the drawing (rectangular prism):
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Volume (V) = B * h ; B = base area; h = height = 7 km (as shown in picture given).
The base area, "B" . B = (5 km)*(3 km)=15 km²
(Note: The "base" is a rectangle, with a length of 5 km and width of 3 km (as shown in picture given).
The area of rectangle = length * width = (5 km)*(3 km) = 15 km²
So the volume, "V" of the figure shown in the drawing =
Base area * height = (15 km²) * (7km) = 105 km³ ;
→ which is answer choice: [D]._______________________________________________