Respostas

2014-07-23T08:23:43-03:00
A) 2,5 . 12 = 30 litros
b) 2,89 . 2 = R$ 5,78
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2014-07-23T11:47:11-03:00
12*2,5=30 litros
2,89*2=5,78 reais