Answer:
[tex]\frac{7}{2187}[/tex]
Step-by-step explanation:
The n th term of a geometric sequence is
[tex]a_{n}[/tex] = a[tex](r)^{n-1}[/tex]
where a is the first term and r the common ratio, thus
[tex]a_{8}[/tex] = 7[tex](1/3)^{7}[/tex] = 7 × [tex]\frac{1}{2187}[/tex] = [tex]\frac{7}{2187}[/tex]
