
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 bag, there are 40 glass balls in total, including red, black, and white ones. Apart from their colors, they are identical. After several trials of drawing balls, Xiao Ming found that the frequency of drawing red and black balls was stable at 15% and 45%, respectively. The possible number of white balls in the bag is \_\_\_\_\_.

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