Answer:
-7
Step-by-step explanation:
Given : sequence 56, 49, 42, 35, ...
To find : Find the common difference.
Solution : We have given that 56, 49, 42, 35, ...
By the common difference of an arithmetic sequence is:
d = a_{2} -a_{1}a2−a1
Where, a_{1}a1 is the first term and a_{1}a1 is the second term.
Then common difference = 49 -56
= -7 .
