\[1)\ 4\frac{4}{35} \cdot \left( 8\frac{7}{24} - 7\frac{29}{36} \right) =\]
\[= \frac{144 \cdot 199}{35 \cdot 24} - \frac{144 \cdot 281}{35 \cdot 36} =\]
\[= \frac{1194}{35} - \frac{1124}{35} = \frac{70}{35} = 2\]
\[2)\ \left( 56,625 - 5\frac{17}{40} \right)\ :1\frac{3}{5} =\]
\[= \left( 56\frac{25}{40} - 5\frac{17}{40} \right)\ :1\frac{3}{5} =\]
\[= 51\frac{8}{40}\ :\frac{8}{5} = 51\frac{1}{5}\ :\frac{8}{5} =\]
\[= \frac{256 \cdot 5}{5 \cdot 8} = 32\]
\[3)\frac{2}{32} \cdot 100\% = \frac{2 \cdot 100}{32}\% =\]
\[= \frac{25}{4}\% = 6\frac{1}{4}\% = 6,25\%\]