. What is the common difference?
The common difference is 8.
The fifth term of an arithmetic sequence is 23 and 12th term is 72
3 answers
a+4d =23
a+11d=72
subtract
7d = 49
d = 49/7
the bot was wrong
a+11d=72
subtract
7d = 49
d = 49/7
the bot was wrong
again :(