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Elodia [21]
3 years ago
12

-

Chemistry
1 answer:
Studentka2010 [4]3 years ago
7 0

Answer:

1. r.a.m = 86×10/100 + 87× 7/100 + 88× 83/100.

860/100 +_607/100 + 7304/100.

8.6+6.07+72.16.

=86.83

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