Respostas

  • Usuário do Brainly
2014-05-29T19:30:03-03:00
72 --- 100%
86,40 ---- X

x=86,40.100/72
x=120%

120%-100%=20%
1 5 1
2014-05-29T19:30:25-03:00
Ele teve de lucro 20% que equivale a R$14.40,00.