A problem states: "There are 9 more children than parents in a room. There are 25 people in the room in all. How many children are there in the room?"

What are the unknowns in this problem?

Responses

the total number of people in the room

the total number of people in the room

the total number of parents in the room

the total number of parents in the room

the total number of children in the room

the total number of children in the room

the total number of children and the total number of parents in the room