Answer:5n^2
Step-by-step explanation:
You were really close :D
The mistake you made is that 44 - 36 is 8, not 6.
Using 8 instead, the answer is:
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. :)