[tex]a)-25\ \textgreater \ -24-\ \textgreater \ correct\\
b)-21\ \textgreater \ -23-\ \textgreater \ no~correct=\ \textgreater \ -21\ \textless \ -23-\ \textgreater \ correct\\
c)-9\ \textgreater \ 3-\ \textgreater \ correct.\\
d)13=13-\ \textgreater \ correct.[/tex]