Wavelengths of 500 Hz sound in air versus water at 10°C

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Please solve showing all work asap thanks sooo much

How many times more wavelengths occur in air than in water for an air temperature of 10 degrees Celsius if the speed of sound in water id 5220 km/hour and the frequency of sound is 500 Hz.

Grade 11, thanks so much please ASAP
 
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We are not going to do your homework for you. Well maybe if you pay as much as... no... no we won't!

Can you find the wavelength of that sound in water?
What do you need to know to find the same thing in the air?