I don't understand pls help meh...

Answer:
4. 5
12. 15
36. 45
Step-by-step explanation:
because they are multiple bye 3
Answer: hey! I got yer’ back!
Step-by-step explanation:
4. 5
12. 15
36. 45
theyre all multiplying by three. I hope this he
ps you, have a wonderful day! :).