\[\boxed{\text{209\ (209).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[1){\ 7}^{7}\ :7^{5} = 7^{2} = 49\]
\[2)\ 10^{18}\ :10^{14} = 10^{4} = 10\ 000\]
\[3)\ {0,6}^{9}\ :{0,6}^{6} = {0,6}^{3} = 0,216\]
\[4)\ \left( - 1\frac{1}{8} \right)^{5}\ :\left( - 1\frac{1}{8} \right)^{3} =\]
\[= \left( - 1\frac{1}{8} \right)^{2} = \left( - \frac{9}{8} \right)^{2} = \frac{81}{64} =\]
\[= 1\frac{17}{64}\]