Answer:
A. Competitive markets face perfectly elastic demand and marginal revenue, while monopolies face downward-sloping demand and marginal revenue.
Explanation:
In the case when competitive firms and monopolies generated at the level in which the marginal cost is equivalent to marginal revenue keeping the other things constant so the price should be less in the competitive market as compared to the monopoly because in the competitive markets it face perfectly elastic demand but in the monopoly it face the down ward sloping demand curve
Therefore the option a is correct
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In this situation, the company should Enter a debit of $1.85 in the Cash Over and Short account.
By doing this, the amount of difference will be covered on the adjustment that made on the account and the calculation for the net profit and cash flows will be back to the correct value,
Given Information:
Current Population = P₀ = 7 billion = 7x10⁹
Growth rate = r = 3 %
Period = t = 100 years
Required Information:
(a) Population after 100 years = ?
(b) Population after t = 0, 1, 2, 10, 25, 50 years = ?
(c) Population vs time graph = ?
Explanation:
The human population growth can be modeled as an exponential growth,

where P₀ is the current population, r is the growth rate and t is the time period
(a) What would the population equal 100 years from now?

P = 140.6x10⁹
(b) Compute the level of the population for t = 0, t = 1, t = 2, t = 10, 25, and t =50
<u>t = 0</u>
P = 7x10⁹e⁰
P = 7x10⁹
<u>t = 1</u>
P = 7x10⁹e^0.03*1
P = 7.213x10⁹
<u>t = 2</u>
P = 7x10⁹e^0.03*2
P = 7.423x10⁹
<u>t = 10</u>
P = 7x10⁹e^0.03*10
P = 9.45x10⁹
<u>t = 25</u>
P = 7x10⁹e^0.03*25
P = 14.82x10⁹
<u>t = 50</u>
P = 7x10⁹e^0.03*50
P = 31.37x10⁹
(c) Make a population versus time graph
Attached as image