Answer:
The answer is "70 units".
Explanation:
In the given question some equation is missing which can be defined as follows:
Monopolistic functions are used where Marginal Profit = Marginal Cost where marginal revenue and marginal cost stand for the MR and MC.
Finding the value of MR :



Calculating the value of the MC:


compare the above equation (i) and (ii):

Answer:
c. a difference in the subject matters of operas X and Y
Explanation:
All factors could directly explain the fact that opera Y generated far greater net profits that did opera X except for this one. Although the subject matter might have some impact on sales, it could not do so in a direct way. It could only do so if we take other factors into account, such as the cost of producing a particular opera or the interest that people have on an opera (which results in greater or lesser ticket sales).
1. A im not to sure for this one.... :/
2. A Signaling ; reputation
Answer:
D. Engaging in active portfolio management to enhance returns
Explanation: