
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 fiscal revenue \( x \) and expenditure \( y \) of a certain region satisfy the linear regression equation \( y=bx+a+e \) (unit: billion yuan), where \( b=0.8 \), \( a=2 \), and \( |e| \leqslant 0.5 \). If the fiscal revenue of this region this year is 10 billion yuan, calculate the annual expenditure expected to not exceed.

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