Please help I don’t understand

Answer:
$30 per Ticket
Step-by-step explanation:
There are 3 friends coming along you so that means you have to divide one number by 3. You have a $20 coupon so that meant you had to subtract 20 from 120. 20-120=100.
Now, you have to divide 100 by the 3 friends then add 5 to each number.
3 divided by 100=25+5=30
So, $30 is your answer