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frutty [35]
3 years ago
11

A student measures the range of sound frequencies that the human ear can hear by playing sounds for volunteers between 10 and

Biology
1 answer:
Mrrafil [7]3 years ago
7 0

Divide 9 by 10 and then add it to 20 and then20 add cuz they do not then you go

Explanation:

ik

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