One of the possible answers could be 4*0/6+11=11 because if 0 is put into the first part of the equation, that will make it equal to 0. Then, if you add 11 to 0 it will give you the number equal to 11. There are other possible answers but this is just the first one that I thought of. Hope it helped!
I I think this because 1 people that have a phone and a computer are the highest group and two becauseit seems that most of the class has a phone it also seems that most of the class has a computer