18.
(01.04 MC)

What is 83,734.21 written in expanded form?
8 x 10,000 + 3 x 1,000 + 7 x 100 + 2 x 0.1 + 1 x 0.01
8 x 10,000 + 3 x 1,000 + 7 x 100 + 4 x 10 + 3 x 1 + 1 x 0.1 + 2 x 0.01
8 x 10,000 + 3 x 1,000 + 7 x 100 + 3 x 10 + 4 x 1 + 2 x 0.1 + 1 x 0.01
8 x 100,000 + 2 x 10,000 + 7 x 1,000 + 3 x 100 + 4 x 10 + 3 x 0.1 + 1 x 0.01