Answer: The correct answer is $16.1 per unit.
Explanation:
C(x) = 9000 + 6x + 0.05x²
C(100) = 9000 + 6 × 100 + 0.05(100)²
= 9000 + 600 + 500
= 10,100
C(102) = 9000 + 6 × 102 + 0.05(102)²
= 9000 + 612 + 520.5
= 10,132.2
Now, the average rate of change of C with respect to x when production level changed from x = 100 to x = 102 is :
⇒ 
= 
= $16.1 per unit
Answer:
Accounts payable Dr, $16,800
Purchase discount Dr, $336
To Cash $16,464
Explanation:
The Journal entry is shown below:-
Accounts payable Dr, $16,800
Purchase discount Dr, $336
To Cash $16,464
(Being Cash is recorded)
Working Note :-
List price of goods after return = $19,200 - 2400
= $16,800
Discount on balance = 16800 × 0.02
= $336
For recording the cash we simply debited accounts payable, purchase discount and credited the cash
Occasionally, barriers to entry may lead to pure monopoly; in other market conditions, they may limit competition to a few oligopoly firms
<h3>Do barriers to entry exist in a pure monopoly?</h3>
Due to entrance restrictions that deter prospective rivals, firms acquire monopolistic power. Barriers to entry, or conditions that make it difficult or impossible for potential competitors to participate in the market, give monopolies their market strength.
The four main elements of monopoly are: (1) a single business controlling the entire output of a market; (2) a distinctive product; (3) barriers to admission and departure from the industry; and, frequently (4) specialised knowledge about production methods that are not available to other potential producers.
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