Arrange the following in an ascending order.

$\sqrt{2},\sqrt{5},-8,-0.31,-2.01,\sqrt{36}$.

Arrange in ascending order.

$2.01,3.1,2.14,0.689$

Arrange the following rational numbers in ascending order.

$\frac{7}{8},\frac{64}{16},\frac{36}{-12},\frac{5}{-4},\frac{140}{28}$

Verify each of the following :

(i) $\frac{3}{7}\times \frac{-5}{9}=\frac{-5}{9}\times \frac{3}{7}$

(ii) $\frac{-8}{7}\times \frac{13}{9}=\frac{13}{9}\times \frac{-8}{7}$

(iii) $\frac{-12}{5}\times \frac{7}{-36}=\frac{7}{-36}\times \frac{-12}{5}$

(iv) $-8\times \frac{-13}{12}=\frac{-13}{12}\times (-8)$