Can somebody plz help answer all these questions (like what to add to solve it)
Thanks:3

WILL MARK BRAINLIEST WHOEVER ANSWERS THIS FIRST :DDD

Can somebody plz help answer all these questions like what to add to solve it Thanks3 WILL MARK BRAINLIEST WHOEVER ANSWERS THIS FIRST DDD class=

Respuesta :

18. 9
19. 5
20. 12
21. 8
22. 2
9,5,12,8,2...........