Petros and Michael each get:
Half a pizza,
2 muffins,
Half and apple
4 tomatoes,
1 carton of orange juice.
I worked this out by looking at the pizza, I shared it out between 2 which means that they get half of the pizza each. Then I looked at the muffins and divided it between 2 which means that they get 2 muffins each, afer that I lookd at the apple, it was a bit more tricky as there was only 1 apple but in the end I got the answer and they would have half an apple each. Next I looked at the tomatoes, to do this I counted up all the tomatoes and I found out that there were 8. I halved them which means that they get 4 tomatoes each. Last but not least there were the orange juice cartons there were 2 which means that they get 1 carton of orange juice each.
So that is what Petros and Michael get in there picnic.