Which graph shows a function whose inverse is also a function?

Well if you have 20 bats you probably want 20 balls? you don’t have enough context to answer the question.

Thats where they was ported and the fields that noone really knew much about needed tended, so they put slaves out there do free work and huge profits and so on the north decided to hold its own and was more different way of survival did not have same climate conditions to afford protecting slaves from winter so expenses be diff from south