If there were a total of 21 games played over 3 months, you divide 21 by 3.
Your answer is 7 games were played each month.
The information about how many games were played at night is useless. It's just thrown in there to confuse you. :)
5(3)+2
15+2
17 monies
Just plug the amount of games in for n
This is the definition of a rational number.
