Answer:
6.76e+5
Explanation:
6.4() + 36,000 [convert to standard form]
6.4 (100,000) + 36,000 [Multiply 6.4 by 100,000]
640,000 + 36,000 [Add]
676,000 = 6.76e+5 [Convert to scientific notation]
6.76x10^5, or 676,000
6.4x10^5 + 0.36x10^5
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