Verified Answer :

\(10y^{\frac{1}{2}}\\ 10*y^{\frac{1}{2}}\\ 10* \sqrt{y}\\ 10\sqrt{y}\)

remember pemdas
exponents before multiply
10 times y^1/2 so exponent first

remember
\(x^ \frac{m}{n}= \sqrt[n]{x^m}\) so
\(y^ \frac{1}{2}= \sqrt[2]{y^1}=  \sqrt{y}\)
now multiply by 10
\(10 \sqrt{y}\)