
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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The total sales volume of mooncakes in a mall 30 days before the Mid-Autumn Festival, denoted as f(t), is approximately related to the time t (0 < t ≤ 30) by the equation f(t) = t^2 + 10t + 16. Find the expression for the average sales of mooncakes in the first t days.

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