Plsease tell ans for c part

(c)  In the circuit diagram given below, a cell of 9V and internal resistance 0.5 $\Omega$ is connected across a resistor A of 2 $\Omega$ in series and two resistors 2 $\Omega$ and  6 $\Omega$ which are in parallel.
 

Find:
(i)  ​the total resistance
(ii)  ​the total current
(iii)  ​the current in the 6 $\Omega$ resistor
(iv)  ​the potential difference across the terminals of the cell.