first, we'll want to write out the equation
[tex]9 \frac{4}{9} < n < \sqrt{144} [/tex]
then reduce what we can
[tex]9 \frac{4}{9} < n < 12[/tex]
so this means n can equal any whole number between 9 4/9 & 12, which gives us the options of {10,11}
[tex]n = 10 \: or \: 11[/tex]