
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
The city of Xiantao vigorously promotes the balanced development of compulsory education and enhances the standardized construction of schools. It plans to comprehensively retrofit the facilities and equipment of all schools within the city over a three-year span. In 2014, the municipal government invested 500 million yuan. Assuming the annual growth rate of investment is the same, and it is expected that the investment will reach 720 million yuan in 2016, what is the annual growth rate of investment?

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