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salantis [7]
3 years ago
6

I need the answer- it's easy!

Mathematics
1 answer:
kaheart [24]3 years ago
8 0
1) You add 72+89 which you get 161 and you divide by two and you get 80.5
2) you do the same thing 72+89+90=251
And you divide by three and you get ≈83.66
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