The lowest note on a piano is A, four octaves below the A given in the table. The highest note on a piano is C, four octaves above middle C. The problem gives me a table of all the notes on a piano, but I'll just include the information for notes A and C.
The frequency of note A is 440.0 Hz. The frequency of note C is 523.3 Hz. Find the frequencies (answers in Hz) and wavelengths (answers in m) in air of notes A and C.