Respostas

2014-05-07T10:35:55-03:00
5 ------ 14
45------ x
5x = 14.45
x = 630/5
x = 126
2014-05-07T11:24:28-03:00
5kg e 14,00
14/5:2,8
45kg custa
45.2,8:126