If a person is talking to you with sound waves that have a wavelength of 0.019meters and a frequency of 18,000 Hz, what would you calculate as the speed of that sound? (wavelength x frequency = speed)

If a person is talking to you with sound waves that have a wavelength of 0.019
meters and a frequency of 18,000 Hz, what would you calculate as the speed
of that sound? (wavelength x frequency = speed)