please answer the question

In the figure V = 12 V, Cq = C4 = 2.8 JF, C2 = 4.0 UF, and C3 = 1.6 JF. What is the charge on capacitor 4? V CA Number i UnitsTwo parallelplate capacitors, 2.6 HP each, are connected in parallel to a 35 V battery. l[Sine ofthe capacitors is then squeezed so that its plateseparation is halved. Because ofthesqueezing. [a] how much additional charge is transferred to the capacitors bythe battery and [bi what is the increase in the total charge stored on the capacitors? [a] Number n Units V (b) Number Units V