Calculate the value of unknown lettered side. Write the answer to 2 decimal places where necessary.

Calculate the value of $y$. Write the answer to 2 decimal places where necessary.

The value of $AD$ is $k m$. Find the value of $k$. Write the answer to 2 decimal places where necessary. 

Calculate the value of unknown lettered side $b$. Write the answer to 2 decimal places where necessary.

For angle $x=30°$, calculate the value of $\tan x$ correct to four decimal places.

For angle $x=48°$, calculate the value of $\tan x$ correct to four decimal places.

For angle $x=120°$, calculate the value of $\tan x$ correct to four decimal places.

For angle $x=194°$, calculate the value of $\tan x$ correct to four decimal places.

For angle $x=30°$, calculate the value of $\frac{\sin x}{\cos x}$ correct to four decimal places.