the answer is C.
12a -18s =36
(12 adult tickets= 12a) - (18 student tickets =18s) =$36
If one shirt equals to $21.46, and you need to purchase 4 shirts to get the free pair of jeans, you multiply 4 by 21.46 and get 85.84. But if there is 42 customers taking advantage of the special, then you need to multiply 85.84 by 42, and you get 3,605.28.
Work out 180-96 cus it’s on a straight line then work out 180-130 then add them then and take away from 180
