Answer:
Step-by-step explanation:
If we look at sequence,
a1=2 and a2=8
So,
d=a2-a1=8-2=6
And we know the formula for arithmetic sequence is
[tex]a_n=a_1+(n-1)*d[/tex]
hence 7th term would be a_7=2+(7-1)*6=> [tex]a_7=38[/tex]
and a_15=2+(15-1)*6=> [tex]a_1_5=86[/tex]
