Respuesta :

geometric sequence

an=a1(r)^(n-1)
a1=first term
r=common rati
common ratio is 4 because 3 times 4=12
first term is 3

an=3(4)^(n-1)
9th term
a9=3(4)^(9-1)
a9=3(4)^8
a9=3(65536)
a9=196608

answer is 4th option