
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 certain food retail store has recently introduced a new cold beverage product, with a cost of $8$ dollars per unit. During the sales process, the daily sales quantity $y$ (units) is related to the selling price $x$ (dollars per unit) by the equation $y=-x+30$. If the profit of selling this cold beverage product in the store every day is $w$ dollars, then the function expression between $w$ and $x$ is ____.

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