Respuesta :

Answer:

30

Step-by-step explanation:

8 times 15 is 120 while 6 times 15 is 90.

Answer:

20

Step-by-step explanation:

 If you multiply 15 by 8 you will get 20 and if you multiply 6 by 3 you get 18 so the answer would be: Joleen bought 20 more stickers than Piper.

hope this helps