For this case we have that each coupon costs $12. So:
Buy a ticket: $12
Get a second ticket at half price we have:
. Thus, the total to be paid will be $12 + $6 = $18.
Therefore, the correct expression is:

Answer:
12+ (12 divided by 2)
Option C
Step-by-step explanation:
t in 1200m:

t in 3750:

difference is:
3.75-0.12 = 3.63
I think the answer could be C