\[\boxed{\mathbf{793\ (793)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[a \cdot b\ :c\]
\[\textbf{а)}\ a = - 12;\ \ b = 8;\ \ c = - 6:\]
\[a \bullet b\ :c = - 12 \bullet 8\ :( - 6) = - 96\ :( - 6) = 96\ :6 = 16.\]
\[\textbf{б)}\ a = 24;\ \ b = - 3;\ \ c = 9:\]
\[a \bullet b\ :c = 24 \bullet ( - 3)\ :9 = - 72\ :9 = - 8.\]
\[\textbf{в)}\ a = 60;\ \ b = 0;\ \ c = - 5:\]
\[a \bullet b\ \ :c = 60 \bullet 0\ :( - 5) = 0\ :( - 5) = 0.\]
\[\textbf{г)}\ a = - 18;\ \ b = - 3;\ \ c = - 9:\]
\[a \bullet b\ :c = - 18 \bullet ( - 3)\ :( - 9) = 18 \bullet 3\ :( - 9) = 54\ :( - 9) = - 6.\]