Figure shows a parallel plate capacitor with a plate area A = 7.89 cm2 and plate separation

Question:

Figure shows a parallel plate capacitor with a plate area A = 7.89 cm2 and plate separation d = 4.62 mm. The top half of the gap is filled with material of dielectric constant K1 = 11.0; the bottom half is filled with material of dielectric constant K2 = 12.0. What is the capacitance?