For the following questions answer them individually
$$12.6 \times 10.2 \times 6.5 = ?$$
$$28677 \div\sqrt{?} = 79 \times 11$$
$$12540 \div 55 \div 6 = ?$$
$$456 + 144 \div 6 \times 8 = ?$$
$$\frac{16\times12+38}{12\times8-25}=?$$
$$45\% of 300 + \sqrt{?} = 56\% of 750 -10\% of 250$$
$$895 + 440 \div 55 = ?$$
$$12 \times 8 + (?)^{2} = (14)^{2}$$
48% of 840 = 36% of ?
$$7\frac{1}{6} of 186 + 565 = 2100-?$$