Answer:
b) $25
Explanation:
Marginal cost is the added expense incurred by undertaking an extra activity, be it selling or production. The marginal concept is applied to determine the viability of engaging in extra activity. Marginal cost is a result of an extra unit of input. It can be additional labor hour, extra worker, or an extra unit produced.
In this case, the marginal cost will be $25. It the extra expense incurred to complete the costume. Marginal cost is the additional cost beyond the expected arising from an extra activity.
Melissa must conduct<u> "causal research".</u>
Causal research falls under the class of conclusive research, as a result of its endeavor to uncover a circumstances and end results connection between two factors. Like descriptive research, this type of research endeavors to demonstrate a thought set forward by an individual or association. Be that as it may, it essentially varies on the two its techniques and its motivation. Where descriptive research is expansive in degree, endeavoring to more readily characterize any feeling, demeanor, or conduct held by a specific gathering.
Answer:
the portfolio´s beta is 1.65
Explanation:
when the individual calculation of beta has been given, is possible to aggregate them as a weigthed average, so it is possible to apply te next formula

where w is the weigthed value for each asset, in this particular case we have:

so with this result we get 1.65
Answer:
division of labor
Explanation:
According to my research on different manufacturing techniques, I can say that based on the information provided within the question the concept being employed in this situation is called division of labor. This is a process in which a larger task is subdivided into smaller easier tasks, in which an individual or group is assigned to each small task and specializes in that section. This method is used to avoid errors in manufacturing.
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