12. 2:5=N:10 14. :N=5:6
13.2/7 =N:28 15. N/4=5/4


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12 25N10 14 N561327 N28 15 N454pa Help class=

Sagot :

Answer:

12. N=4

13. N=8

14. N=? Missing 1 given

15. N=5

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