To solve this, I would just find what two adult tickets and one child ticket wold be worth.
To find that, just do:
5.20 + 9.90 * 2, which makes 25.
So now you just find how many 25s are in 900, or 36.
So 36 children's tickets were sold that day.
Hope I helped :)
Answer:
B) -16
Step-by-step explanation:
-4-3-1-8
subtract them all lol
7+9= 16
Then add the negative symbol
-16
16-12+12x17= 208 u should use a calcuator