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Lauren1 Lauren1
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Posts: 4120
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9 years ago
In one day, Sue can change the oil on 20 cars or change the tires on 20 cars. In one day, Fred can change the oil on 20 cars or change the tires on 10 cars. Sue and Fred can gain from trade if Sue changes the ________ and Fred changes the ________.
A) tires; oil
B) oil; oil
C) oil; tires
D) tires; tires
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MrDerecheMrDereche
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#1
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9 years ago
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Lauren1 Author
wrote...
#2
9 years ago
Thank you, this really, really helps Heavy Heart
wrote...
#3
9 years ago
You're welcome!
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