What is the speed of a wave that has a frequency of 440 Hz and a wavelengthof 0.78 m?

What is the speed of a wave that has a frequency of 440 Hz and a wavelength
of 0.78 m?
A. 564 m/s
O O O
B. 0.003 m/s
C. 343 m/s
D. 0.002 m/s

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