Multiply $5 \sqrt{3}$ and $4 \sqrt{12}$.
Fill in the blanks so as to make each of the following statements true (Final answer only)
$\sqrt[11]{1}=\ldots \ldots$
State whether the following statements are true or false
Every whole number is an integer.
Represent $5 . \overline{49}$ on the number line, using successive magnification, up to $4$ decimal places.
If $\sqrt{5}=2.236,$ then evaluate $\frac{4-\sqrt{5}}{\sqrt{5}}$ correct to four decimal places.