moropstroKers moropstroKers

08-06-2016
Mathematics

contestada

1/3(21m + 27)
a. 63m + 9
b. 7m + 9
c. 7m + 81
d. 7m + 27

Respuesta :

Аноним Аноним

08-06-2016

1/3(21 m+27)=21/3 m + 27/3=7 m + 9.

Answer: b. 7 m + 9

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