When two musical notes are a “fourth” apart, the frequency of the lower note is LaTeX: \frac{3}{4}34 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

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old