Algebra-1

Question Analysis
This question tests the student's ability to recognize and write an exponential equation based on a given scenario.

Key Concept Explanation
In an exponential relationship, the dependent variable changes by a constant relative rate. The general form of an exponential equation is , where is the initial value and is the growth/decay factor.

Step-by-step Solution
1. Identify the initial value: The colony starts with 50 cells, so

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