Find the value of $\{(49)^{\frac{3}{2}} + (49)^{\frac{3}{2}}\}$

What should come in place of the question mark $(?)$ in the following equation?
$39.97 \%$ of $649.8 \div 13.05 = 45.12 - ?$

$\frac{0.0203 \times 2.92}{0.0073 \times 14.5 \times 0.7} = ?$

What approximate value will come in the place of the question mark $(?)$ in the following equation? (You are not expected to calculate the exact value.)
$7441 \div 34 \times 12 = ? \times 9 + 110$

$7^{5} \div 7^{3} \div 7^{2} \times 7^{4} \times \frac{1}{7^{3}} = 7^{?}$

What will come in the place of the question mark $(?)$ in the following expression?
$\sqrt{15^{2} \times 12 \div 9 - 125 + 21} = ?$