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.)
$7441 \div 34 \times 12 = ? \times 9 + 110$

Find the value of the following expression up to four places of decimals:
$\left[1+\frac{1}{1 \times 2}+\frac{1}{1 \times 2 \times 4}+\frac{1}{1 \times 2 \times 4 \times 8}+\frac{1}{1 \times 2 \times 4 \times 8 \times 16}\right]$

What is $x$ if $x^{2} - 1.5^{2} - 0.9^{2} = 2.43$?

What is the value of $\frac{(0.5)^{3}-(0.1)^{3}}{(0.5)^{2}+0.5 \times 0.1+(0.1)^{2}}?$

The value of $\frac{1}{2} + \frac{1}{2 \cdot 3} + \frac{1}{2 \cdot 3 \cdot 4} + \frac{1}{2 \cdot 3 \cdot 4 \cdot 5}$ is correct to three places of decimal:

If $2x + \frac{1}{3x} = 6$,then $3x + \frac{1}{2x}$ is equal to