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Answer:
4.08 * 10¹²
Explanation:
Expression: 3.4 * 10⁹ * 1200 (since 3.4*10⁹ pieces/m³, and 1200 m³, multiplication cancels out the m³, leaving just the pieces)
Simplify: 3.4 * 10⁹ * 1.2 * 10³
Simplify: 4.08 * 10¹²
1.2 with an exponent of 2
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