Answer:
3x + 2y = 170
4x + 6y = 360
Explanation:
For the 1st equation, we got 3x because there are 3 children, and 2y because there are 2 adults. The x is for the children and the y is for the adult
For the 2nd equation, we got 4x because there are 4 children, and 6y because there are 6 adults. The x is for the children and the y is for the adult.
I hope this helps! :)