
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]


system
In an opaque box, there are $n$ identical balls except for their colors, with $9$ of them being yellow. Before each draw, the balls in the box are shaken. After drawing a ball and noting its color, it is placed back into the box. Through a large number of repeated experiments, it is found that the frequency of drawing a yellow ball stabilizes at $30\%$. Estimate the number of balls $n=$____ in the box.

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