Algebra-1

Question Analysis
This question tests the student's ability to use the explicit formula for the nth term of a geometric sequence with a positive integer common ratio.

Key Concept Explanation
The explicit formula for the nth term of a geometric sequence is (). When the common ratio is a positive integer, the terms increase exponentially.

Step-by-step Solution
1. Identify the given values: , , and .
2. Substitute these values into the explicit formula:

Click "Show Answer" to reveal the answer and analysis