Respuesta :

kamil
140% = 1,4 = 14/10
14/10 * x = 56      |(*10/14)
14/10 * 10/14 * x = 56 * 10/14                  14/10 * 10/14 => 1
1 * x = (56*10)/14
x = 560/14
x = 40
 40 is the correct answer for this question.