don't use Ai, and type please

A very long line charge having a charge density A is surrounded by a conducting cylindrical shell with inner radius r; = 4.07 cm and outer radius to = 7cm as shown in the figure. System is in electrostatic equilibrium condition. What would be the electric potential difference AV = V(r= 1.58 cm) - V(r= 6.2 cm) ? Provide your answer in terms of Ak with 2 significant figures. To. ri