Answer:
2
Step-by-step explanation:

1956/(3+1)=489 adult tickets cost for all adults
1965-489= 1467 cost of child tickets
1467/5.30=276.8
277 child tickets were sold.
This question is about the GREATEST COMMON FACTOR.
Supper Dishes: 5 10 15 20 25 30 35
Trash: 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35
Vacuums the House: 7 14 21 28 35 42
He will have to do all three chores on the same day every 35 day.
The answer to your math question is x=5