For the following questions answer them individually
$$\sqrt{625}-\sqrt{529}=\sqrt{?}$$
36% of 220 - 12% of 140 = ?
58 + 621 $$\div$$ 23 - 45 = ?
$$(0.04)^{2} + (0.008) \times (0.2)^{6} = (0.2)^{?}$$
$$92 \times 7 \div 8 - 63.80 = ?$$
16.5% of 2400= $$\frac{2}{3}$$ of (?)
36.934 - 48 + 17.449 = ?
$$(1+\sqrt{6})^{2}=?+2\sqrt{6}$$
$$2\frac{1}{9} \times 1\frac{2}{19} \div 2\frac{1}{3} = ? - 1\frac{1}{2}$$
$$(3^{2} \times 4^{2} \times 5) \div 36 = (?)^{2} - 80$$