()=2+6+17 hope it helps :)
What I'm sorry can you time it better
i believe it is low interest rate because interest is how much extra money you have to pay.
Answer:
it's 6, 9, 14, 21
because for the first 4 terms, you swap n for 1, 2, 3 and 4, so 1² = 1+5 = 6
2²=4+5=9
3²=9+5=14
4²=16+5=21
so 6, 9, 14, 21