If $\left(56\sqrt{7}{\mathrm{x}}^3-2\sqrt{2}{\mathrm{y}}^3\right)÷(2\sqrt{7}\mathrm{x}-\sqrt{2}\mathrm{y})={\mathrm{Ax}}^2+{\mathrm{By}}^2-\mathrm{Cxy}$, then find the value of $\mathrm{A}+\mathrm{B}-\sqrt{14}\mathrm{C}.$

$\frac{0.07\times 0.07\times 0.07 - 0.05\times 0.05\times 0.05}{0.07\times 0.07+0.07\times 0.05+0.05\times 0.05}=?$ 

(A) $0.002$
(B) $0.02$
(C) $0.2$
(D) $0.0002$

Simplify:

$(2.43\times 2.43+2.43\times 7.57\times 2+7.57\times 7.57)$

(A) $10$

(B) $100$

(C) $101.89$

(D) $200.59$

In the following question what will come in place of question mark (?):

$\frac{{(2.3)}^3+0.027}{{(2.3)}^2-0.69+0.09}= ?$