
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


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In an extracurricular reading activity organized by a school, the average reading amount per student increased from $1$ million words per year in the seventh grade to $1.21$ million words per year in the ninth grade. Let the average annual growth rate of reading amount per student from the seventh to ninth grade be $x$. According to the question, the equation can be written as ______.

Present the answer in LaTex format: \boxed{Your answer}
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