§ Задание 149
\[\boxed{\mathbf{4.}\mathbf{149}}\]
\[- 9{^\circ}С;\]
\[2{^\circ}С;\]
\[0{^\circ}С;\]
\[- 20{^\circ}С;\]
\[- 28{^\circ}С;\]
\[- 21{^\circ}С.\]
\[\boxed{\mathbf{4.}\mathbf{149}}\]
\[- 9{^\circ}С;\]
\[2{^\circ}С;\]
\[0{^\circ}С;\]
\[- 20{^\circ}С;\]
\[- 28{^\circ}С;\]
\[- 21{^\circ}С.\]