Answer the following:

$\displaystyle {\left({6}\right)}{\left(-{9}\right)}$

$\displaystyle {\left(-{6}\right)}{\left({9}\right)}$

$\displaystyle {\left(-{6}\right)}{\left(-{9}\right)}$

$\displaystyle {\left(-{9}\right)}{\left({6}\right)}{\left(-{9}\right)}$

$\displaystyle {\left(-{9}\right)}{\left(-{6}\right)}{\left(-{9}\right)}$

$\displaystyle \frac{{-{54}}}{{{9}}}$

$\displaystyle \frac{{-{54}}}{{-{6}}}$