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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

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?"

Letcrepresent the number of children.

Which expression represents the number of parents?

c9
c+ 9
c9
9c

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