Răspunsuri

2014-09-01T12:36:23+03:00
A/5 :4 *10-10 =60

a/5 :4 *10= 60+10

a/5:4 *10=70

a/5:4 =70:10

a/5:4= 7

a/5=7*4

a=28*5

a=140