Which inequality represents the following sentence twelve fewer than a number is at least 18 a 12+x<or equal to 18 b x-12>or equal to 18 c 12-x>or equal to 18 d x-12<18
[tex] \bf \begin{cases}
x=number\\
\stackrel{\textit{12 fewer than that}}{x-12}
\end{cases}~\hspace{7em}x-12\stackrel{\textit{18 or more, at least 18}}{\ge} 18 [/tex]