
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
Given that 200,000 cubic meters of timber is consumed annually at a price per cubic meter of 240 yuan, and a timber tax at a rate of t% causes the annual timber consumption to decrease by $2.5t$ (in ten thousand cubic meters), determine the range for t such that the annual tax revenue is not less than 900,000 yuan.

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