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AlexFokin [52]
3 years ago
9

4,13,31,67 ___ What's the rule ?

Mathematics
2 answers:
notsponge [240]3 years ago
6 0
The rule is every number x2 plus 5
Sliva [168]3 years ago
6 0
The rule is x times 2 plus 5
So 4 times 2 plus 5 is 13 and so on
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