What is the expanded form of this number?

18.029


(1×10)+(8×1)+(2×1100)+(9×1100)

(1×10)+(8×1)+(2×110)+(9×11,000)

(1×10)+(8×1)+(2×110)+(9×1100)

(1×10)+(8×1)+(2×1100)+(9×11,0