\[\boxed{\mathbf{556}.}\]
\[1)\ y = x^{3}\]
\[D(x) = R;\]
\[E(y) = R.\]
\[y = \sqrt[3]{x}\]
\[2)\ y = x^{2}\]
\[E(x):\ \ y \geq 0.\]
\[y = \sqrt{x}\]
\[D(x):\ \ x \geq 0;\]
\[E(y):y \geq 0.\]