Question

Find the common difference, d, in the following arithmetic sequence.
6, 11, 16, 21, …
a] -6
b] 6
c] -5
c] 5

Answer 1

well,you can simply subtract two of those consecutive numbers...for example:
11 - 6 = 5 so the answer is 5 and to check this you can subtract others:
16 - 11 =5
21 - 16 = 5