a)$ \left | -12 \right | > \left | 0\right |$
b) $\left | \frac{-321}{491} \right | = \left | \frac{321}{491} \right |$
c)$ \left |5.706 \right | < \left | -7.01 \right |$
d) $\left | -\sqrt{131}\right | < 131$
a)$ \left | -12 \right | > \left | 0\right |$
b) $\left | \frac{-321}{491} \right | = \left | \frac{321}{491} \right |$
c)$ \left |5.706 \right | < \left | -7.01 \right |$
d) $\left | -\sqrt{131}\right | < 131$