sophiatrejo60 sophiatrejo60 17-09-2020 Mathematics contestada When two musical notes are a “sixth” apart, the frequency of the lower note is 3/5 the frequency of the higher note. Using f as the frequency of the higher note, write an expression for the frequency of the lower note. HELP!1. f - 2/52. 3/5 f3. 2/5 f4. 3/5 + f