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Help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-example-1
User Gowsikan
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1 Answer

3 votes

Answer:

600

Explanation:


R(1)=400 \\ \\ R(2)=1000 \\ \\ R(2)-R(1)=600

User Czchlong
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