Respostas

2014-05-10T01:36:44-03:00
39--------100%
8---------x%
X=20,51
2014-05-10T01:37:45-03:00
39/100=8/X
39X=800
X=800/39
X=20,51%
de onde voce tirou o 8?
48-39-8 os juros
quero dizer, 47-39=8
atah obg