Answer:
When Economists say that humans make decisions at the margin they mean that decisions are made on the basis of the cost and benefit of getting an additional unit of a good/ service.
Marginal benefit refers to the additional utility that we will derive from consuming one extra unit of a good or service and factors in heavily into our decision making. We usually accept a decision if the Marginal benefit is higher or equal to the Marginal cost ( cost of the additional unit) of the good/service.
If the Marginal Cost is instead higher, the decision would most probably be cancelled.
Answer:

if n=1 (monopoly) we have 
if n goes to infinity (approaching competitive level), we get the competition quantity that would be 
Explanation:
In the case of a homogeneous-good Cournot model we have that firm i will solve the following profit maximizing problem

from the FPC we have that


since all firms are homogeneous this means that 
then 
the industry output is then

if n=1 (monopoly) we have 
if n goes to infinity (approaching competitive level), we get the competition quantity that would be 
Answer:
A.
Explanation:
Economic systems refers to the different ways in which a government moves and distributes the resources that the country needs, including labor, capital, entrepreneurs, physical resources and information resources. That being said the two main characteristics that explains how they differ would be who owns the factors of production which are the 5 stated above, and the methods used to coordinate economic activity.
Answer:
$965
Explanation:
Calculation to determine what Ending inventory assuming weighted-average cost would be:
First step is calculate the Weighted-average cost
Weighted-average cost = [(480 x $2.48) + (440 x $2.75)] / (480+440)
Weighted-average cost =1,190.4+1210/920
Weighted-average cost = 2400.4/920
Weighted-average cost =2.6091
Now let determine the Ending inventory
Ending inventory = (920-550) x 2.6091
Ending inventory = 370x 2.6091
Ending inventory =$965
Therefore Ending inventory assuming weighted-average cost would be $965
<h2>
Clarify the assignment would be the first step john should take to increase Kerry's responsibilities.</h2>
Explanation:
Option A: If a new work is assigned or an additional work is assigned, it is necessary to first explain about the new responsibility and clarify about the assignment. This would ensure Kerry to continue the work smoothly.
Option B: Feedback is always welcome but this is not the first step to add responsibilities.
Option C: Notifying others is the responsibility of John and not Kerry. So this choice is invalid.
Option D: Accountability though it is mandatory comes only in the closure part.