
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
A store sells a product at a cost of 40 yuan per kilogram. According to market research and analysis, if the product is sold at 50 yuan per kilogram, 500 kilograms can be sold in a month. For every 1 yuan increase in the selling price, the monthly sales volume decreases by 10 kilograms. The store has 10,000 yuan available for this product this month. If the store wants to achieve a profit of 8,000 yuan this month from selling this product, what should be the appropriate selling price?

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