Question

What is the seventh term of a sequence whose first term is 1 and whose common ratio is 3?2437292,187?

Answer 1

$\bf n^{th}\textit{ term of a geometric sequence}\\\\ a_n=a_1\cdot r^{n-1}\qquad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ r=\textit{common ratio}\\ ----------\\ a_1=1\\ r=3\\n=7 \end{cases}\implies a_7=1\cdot 3^{7-1} \\\\\\ a_7=3^6$

Answer 2

What he meant was:

What is the seventh term of a sequence whose first term is 1 and whose common ratio is 3?

A) 243

B) 729

C) 2,187