Answer:
number sequance rule
1. 1,3,6,10,15,21 (+2,+3,+5,+5,+6)
2. 3,6,12,24 ( x2)
3. 1,3,7, 15 (x2+1,+2,+3, +4, +5)
4.1,3,7,15 (x2+1)
5. 12, 27,42,57 ( + or add 15)
Step-by-step explanation:
hope it helps
hope it helpssorry kung paulit ulit ung number pero halimbawa kci yan ng rule hehe