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Gala2k [10]
3 years ago
12

HELP ASAP PLEASE!!!! 15 PTS!!

Chemistry
2 answers:
Bond [772]3 years ago
5 0
ADD THEM all, and then divide by four. Thats what I would do! 
marshall27 [118]3 years ago
5 0

the correct answer is 2,3,4,6, and 7

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