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2 votes
Look at the following ratios and determine which one does not belong.

12:18
2 to 3
69
18:21

The ratio that does not belong is
.

1 Answer

3 votes
12:18, 2:3, 6:9, 18:21

The ratio 18:21 would not belong because it does not match the arithmetic nonzero y-intercept functional sequence.
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