Answer:
1594323
Step-by-step explanation:
T base n = ar power n - 1 is the formula of geometric progression , so :
(a= first term , r= second term divide with the first term and n= the term that you want to find)
So:
a=9 r=27÷9 n=12
=3
T base 12 = 9 (3) power 12-1
=1594323
