Answer:
All of those are true
Step-by-step explanation:
What it means is "Onto function is a function in which every element in set B has one or more specified relative elements in set A. In an onto function, the domain is the number of elements in set A and codomain is the number of elements in set B. Range is the number of elements in Set B which have their relative elements in set A" basically every possible value in the range is pairable with a domain so it's like matching numbers and letters each one has a domain or has to
(I don't know if that is what you wanted, sorry)