If the market price is $25 in a perfectly competitive market, the marginal revenue from selling the fifth unit is O $25. O $5. O $125. O $12.50. Market supply is found by O horizontally summing each individual producer's average total cost curve. O horizontally summing the relevant part of each individual producer's marginal cost curve. O vertically summing each individual producer's average total cost curve. O vertically summing the relevant part of each individual producer's marginal cost curve. Perfect competition is characterized by all of the following except O heavy advertising by individual sellers. O horizontal demand for individual sellers. O homogeneous products. O sellers are price takers.

In microeconomics, the term "marginal revenue" refers to the increased total income that results from increasing product sales by only one unit.
While total revenue refers to the entire amount of money a firm makes (sales times the pricing of goods and services), marginal revenue is the additional money made by selling one more unit of a good or service.
The income gain brought on by the sale of one more unit of output is known as marginal revenue.
While marginal income may be constant above a certain level of output, the law of diminishing returns dictates that it will ultimately begin to decline as output level rises.

Given questions

If the market price is $25 in a perfectly competitive market, the marginal revenue from selling the fifth unit is : $25
Market supply is found by horizontally summing the relevant part of each individual producer's marginal cost curve.
Perfect competition is characterized by all of the following except :heavy advertising by individual sellers

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