\[\boxed{\mathbf{Проверьте\ себя.\ Страница\ 137 - 138}}\]
\[\boxed{\mathbf{Проверочная\ работа\ №1.\ Проценты}}\]
\[\boxed{\text{1.}}\]
\[0,09 = 9\%.\ \ \ \]
\[\boxed{\text{2.}}\]
\[0,64 = 64\%.\ \ \ \]
\[\boxed{\text{3.}}\]
\[2,55 = 255\%.\ \ \ \]
\[\boxed{\text{4.}}\]
\[28\% = 0,28.\ \ \ \]
\[\boxed{\text{5.}}\]
\[7\% = 0,07.\ \ \ \]
\[\boxed{\text{6.}}\]
\[175\% = 1,75.\ \ \ \]
\[\boxed{\text{7.}}\]
\[Да.\ \ \]
\[\boxed{\text{8.}}\]
\[Да.\ \ \]