Simplify: $\sqrt{245}$
Simplify: $\sqrt{99}$
Simplify: $\sqrt{216}$
Simplify: $\sqrt[3]{216}$
Simplify: $\sqrt[3]{192}$
Simplify: $\sqrt{128p^{5}q^{2}r^{18}}$
Simplify: $\sqrt[3]{250a^{4}b^{11}}$