There are 16 ounces in a pound, so since they are 5.9 dollars per pound, you would divide 5.9 by 16. After doing this you get 0.36875. Rounding to the cent you get $0.37 per ounce.
Algebracicaly speaking the answer would be either -13.3876 or - 158.612 through the quadratic equation, but these answers don’t make sense in this real world scenario.