va rog 9 repde repede va rog

Răspuns:
a . 7\7 =1
b.28\7= 4
c.77\7 =11
.......................
am calculat astfel
a/7=1/1
=>a= 7
b/7=4/1
=> b= 7×4
=>b= 28
c/7=11/1
=> c=11×7
=> c=77