Two capacitors, one 12.0 f and the other of unknowncapacitance, are connected in paralel across a battery of EMF 9. The total enery stored in the two…

Two capacitors, one 12.0 μf and the other of unknowncapacitance, are connected in paralel across a battery of EMF 9.0V. The total enery stored in the two capacitors is 0.0115 J. A)What is the unknown capacitance, C?
B) What is the total charge stored on the two capacitors?