If $x \times y = (x + 2)^2 (y - 2)$,then $7 \times 5 = ?$

What approximate value will come in place of the question mark $(?)$ in the given equation? (You are not expected to calculate the exact value)
$\frac{1810}{24.05} \times 7.95 + 11.02 \times 18.88 = ? - 306$

$337.62 + 8.591 + 34.4 = ?$

$(0.1 \times 0.01 \times 0.001 \times 10^{7})$ is equal to

What is the value of $5 \frac{1}{2} + 7 \frac{1}{2} + 11 \frac{1}{2}$?

In a pair of fractions,fraction $A$ is twice the fraction $B$ and the product of the two fractions is $\frac{2}{25}.$ What is the value of fraction $A$?