Question

Find the common Difference arithmetic sequence
, 1 D 13, 17, 21, 2) 17, 2/7, 3/7) 3) 1.5,3,4.5,6,1 4) 16,13,10,7, 5) 45, 40,35 . ​

Answer 1

Answer:

1)d=4

2)d=16.714285

3)d=1.5

4)d=-5