The decimal expansion of the rational number $\dfrac{33}{2^2 × 5}$ will terminate after

1. one decimal place
2. two decimal places
3. three decimal places
4. four decimal places

$\sqrt{10} × \sqrt{15}$ is equal to

1. $6\sqrt{5}$
2. $5\sqrt{6}$
3. $\sqrt{25}$
4. $10\sqrt{5}$

The value of $\sqrt{8} + \sqrt{18}$

1. $\sqrt{26}$
2. $2(\sqrt{2} + \sqrt{3})$
3. $5\sqrt{2}$
4. $6\sqrt{2}$

The number $(2 - \sqrt{3})^2$ is

1. a natural number
2. an integer
3. a rational number
4. an irrational number