"Can you break a 20 dollar bill ?" Are this sentnece and "Do you have change of a 20 dollar bill" the same ? When I go to a store and I need small bills but I don't want to buy anything I tell the seller "Can you break a 20 for me?" (this is correct, right ?) But I'm not sure I can say the second sentence. The second sentence I would say in a situation when I buy let's say ice cream and I give him a 100 dollar bill and I'm not sure he has change. Am I wrong in my opinion ? Thanks.