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Orlov [11]
3 years ago
12

Jack took a test and got 13/17. He took a retest and got 12/15.

Mathematics
2 answers:
4vir4ik [10]3 years ago
8 0
His grade increased. 
If you divide 13 by 17, you get 0.7647, and if you multiply that by 100, that's 76.47%, which was is grade on the test.
If you divide 12 by 15, you get 0.8, or 80%.
ololo11 [35]3 years ago
7 0
It increased to an 80
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