Answer:
the arithmetic sequence is 7
Step-by-step explanation:
let
5 be t1, 12 be t2, 19 be t3 and 26 be t4
t2-t1=d
therefore 12-5=7
t3-t2=d
therefore 19-12=7
t4-t3=d
therefore 26-19=7
the difference is 7
i am not sure please conform it from other sorce
i hope it helps
