Question

2 of the dozen eggs in a cartoon are cracked about what percent of the carton is not cracked

Answer 1

since there are a total of 30 eggs in a carton and 2 dozen are broken (24) it'd be 20% that isn't broken

Answer 2

well, a carton has a dozen, namely 12 or the 100%, two were cracked.

if we know 12 is the 100%, what is 2 off of it in percentage?

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 12&100\\ 2&x \end{array}\implies \cfrac{12}{2}=\cfrac{100}{x}\implies x=\cfrac{2\cdot 100}{12}\implies x=16.\overline{66}$