To determine how many pounds is made up of fat, multiply the given weight by the body fat percentage.
First, convert the percentage into decimal form.
[tex]16.8\%\Longrightarrow0.168[/tex]Next, multiply it to the given weight
[tex]173\text{ pounds}\times0.168=29.064\text{ pounds}[/tex]Rounding to the nearest tenth, 29.1 pounds is made up of fat on the total weight.