Question

What is 3n + 12? im so confused

Answer 1

It's an nth term for a sequence
So
I'm not really good at explaining but basically
3n means the three times table
And then to each number you add 12
So
3,6,9,12,15
(+12)
So your final answer is:
15,18,21,24

Answer 2

3(n+4) should be it