Which of the following sentences is true? use the number line to help you decide.

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6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.0

a) 6.4 is greater than 6.6.
b) 6.3 is great than 6.0.
c) 6.4 is less than 6.2.
d) 6.8 is greater than 6.6