Question

please help me answer this question! it’s due in soon. could you do this?

Answer 1

I’m not sure what the answer to a is but b is 21

1 + 2 = 3
3+ 3 = 6
6+ 4 = 10
10+ 5 = 15
15 + 6 = 21

The patter is that the number that is added increases by 1 each time

Answer 2

a:) Integer Sequences

b:) 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, ...

Explanation: