redraw R3, R4, R5 to make one resistor in a parallel circuit with R2, then add the inverse of R2 with the inverse of R3+R4+R5 the inverse the answer then you should now have 3 resisters in series then add them together to give you the total resistance. now if you use ohms law I=V/R you can work out the current through the circuit at each resistor an also the voltage across each resistor.