Answer:
dx/dt = -3/5 time/week.
Explanation:
differentiating both sides w.r.t t time.
given 
times / week
(B) When revenue equals opportunity and variable cost, then the producer surplus most likely drops to zero for a firm.
<h3>
What is revenue?</h3>
- The total income derived from the sale of products or services pertaining to a business's core operations is referred to as revenue.
- Because it appears at the top of the income statement, revenue, which is also known as gross sales, is frequently referred to as the "top line."
- A company's overall earnings or profit are referred to as income or net income.
- Although both revenue and profit are positive indicators for your company, they are not the same thing.
- The producer surplus for a firm will probably reach zero when revenue equals opportunity costs and variable costs.
Therefore, (B) when revenue equals opportunity and variable cost, then the producer surplus most likely drops to zero for a firm.
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I would say that it would simply be a businessman's interest group or an association such as the Association of Mineral Exploration in the province of British Columbia, Canada that is an advocacy group for the businessmen to ensure they get the ear of the provincial government and so they can be a lobby group too.
The probability that an audit team will express an inappropriate audit opinion when the financial statements are materially misstated is the definition of audit risk.
When the financial statements are materially misstated, the auditor expresses an inappropriate audit opinion, this risk which an auditor gives is called the audit risk. So, when the auditor fails to modify an opinion on the financial statements it is an audit risk.
The audit risk will typically rise as an auditor will never be able to obtain absolute assurance by conducting audit procedures. Thus, after identifying the audit risk, auditors are often required to identify the relevant response to these risks.
Hence, the audit risk is a function of the risk of material misstatement.
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