Question: What frequency is one octave above 5 kHz? b. What frequency is one decade below 10 kHz? c. What frequency is two octaves below 20

What frequency is one octave above 5 kHz?
b. What frequency is one decade below 10 kHz?
c. What frequency is two octaves below 20 kHz?
d. What frequency is two decades above 1 kHz?

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