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Effectus [21]
3 years ago
10

Help for number 12 pls

Mathematics
2 answers:
Marianna [84]3 years ago
7 0
10 minutes left of homework
andrew11 [14]3 years ago
4 0
Set up an equation of 22-12 to get 10 questions left.

Then remember that for one question he needs one minute so for 10 questions he needs 10 minutes.
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