What is the expanded form of the decimal 509.1?
A) (5 x 100) + (9 x 10) + (1 x 1
10
)
B) (5 x 100) + (9 x 10) + (1 x 1
100
)
C) (5 x 100) + (0 x 10) + (9 x 1) + (1 x 1
10
)
D) (5 x 1000) + (9 x 100) + (1 x 10) + (1 x 1
10
)