Respuesta :

tanvira12
#13 isn't too bad my friend. Just do 21-9, then divide by 4. So each ticket was $3. 
15 is similar too. so he has 9 more than half. Take 9 away from 21, and you have 12. Double that, and you have the original 24.
The answers are:
13) 3
14) 24