\[Страница\ 45.\]
\[\boxed{\mathbf{8.}}\]
\[= 7560 + 20 \cdot 105 =\]
\[= 7560 + 2100 = 9660\]
\[Ответ:9660.\]
\[= 7,3125\ :0,02 = 731,25\ :2 =\]
\[= 365,625\]
\[6,8125 + 0,5 = 7,3125\]
\[Ответ:365,625.\ \]