Find the greatest number of three digits which is a perfect square.

Find the square root of $\frac{441}{961}$.

Find the square root of:

$\frac{324}{841}$

Find the square root of $4\frac{29}{29}$.

The above is incorrect. The correct question:

Find the square root of  $4\frac{29}{49}$.

Find the square root of:

$2\frac{14}{25}$

Find the square root of:

$2\frac{137}{196}$

Find the square root of:

$23\frac{26}{121}$

Find the square root of :

$25\frac{544}{729}$