Ex. 4) Find the $10^{th}$ term in a geometric sequence which has a $2^{nd}$ term equal to 7 and a $5^{th}$ term equal to 35. [First, find the common ratio, $r$. Then, since the initial term, $b$, is not given, you must express the $10^{th}$ term of the sequence in terms of one of the given terms instead. Make sure you adjust $n$ appropriately to account for this.]
