[tex]4\,\frac{1}{2}[/tex] ounces of 80-proof liquor have approximately 3 drinks.
A 80-proof liquor has a volume-to-volume percentage of 40 % alcohol, which is typical for distilled spirits. In the United States, a drink of distilled spirits is equal to 1.5 ounces. Then, the number of drinks is found by the following ratio:
[tex]n = \frac{4.5\,oz}{1.5\,\frac{oz}{drink} }[/tex]
[tex]n = 3\,drinks[/tex]
In other words, [tex]4\,\frac{1}{2}[/tex] ounces of 80-proof liquor have approximately 3 drinks.
We kindly invite to check this question on drinks: https://brainly.com/question/5169688