1. The problem statement, all variables and given/known data 2. Relevant equations q(t) = Cε(1-e^(-t/RC)) 3. The attempt at a solution for part a) the instant the switch is closed there is no charge on the capacitor so I am pretty sure I can ignore it for this part and use keirchoffs rules to find the currents through each resistor. For part b) I am less confident. I think I can use the equation q(t) = Cε(1-e^(-t/RC)) to find the charge. if t is a "very long time" like the question says I can say that t goes to infinity so q(t) = Cε(1-e^(-∞)) = Cε(1-0) = Cε = (4 μF)(42 v) but I am not sure if this is correct.