Respostas

2013-10-10T17:02:41-03:00
2,5R$=====100cm(corta cm)
x       =====380cm(corta cm)

x*100=380*2,5
100x=950
x=950/100
x=9,5

irá custar 9,50R$
2013-10-10T17:06:42-03:00
1m = 100 cm
100= 2,50 
380=x
950/100=x logo 9,50