Someone answer and EXPLAIN ill mark brainliest

to be fair, this one is tough  :D

Step-by-step explanation:

So,  we need to figure out what 56 * 8.50 is , it's  476, now subtract that from the total sales.   3136-476=2660 ... the 2660 is the amount of sales when the adults and the kids were at the same amount sooo use a common variable like X and add up the ticket prices of 10.50+8.50 so that you have an eqution of  

x*19.00=2660.00

x=140    people

nice we have the Adults and kids ... each of 140

now just add 140+56=196 kids went to the movies

196 kids

Answer D is correct

Step-by-step explanation:

Angles in a straight line is added up to 180°

Therefore,

Hope this helps you.

Let me know if you have any other questions:-):-)