Answer:To solve a geometric sequence, you need to identify the first term (a) and the common ratio (r). The general formula for the nth term (aₙ) of a geometric sequence is aₙ = a * r^(n-1), where n is the term number. You can also find the sum of a finite geometric series using the formula Sₙ = a(1 - rⁿ) / (1 - r), where Sₙ is the sum of the first n terms.