Question

find the first 20 terms in the arithmetic series -6-12-18-....

Answer 1

Keep subtracting 6 until you hit the 20th term. Hope this helps

Answer 2

6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108, 114, 120, 126, 132, 138, 144, 150

I did a little extra for you, b ut all you have to do is add 6 each tim :)

Hope this helped!