Answer: ER(P) = ERX(WX) + ERY(WY)
16 = 13(1-WY) + 9(WY)
16 = 13 - 13WY + 9WY
16 = 13 - 4WY
4WY = 13-16
4WY = -3
WY = -3/4
WY = -0.75
WX = 1 - WY
WX = 1 - (-0.75)
WX = 1 + 0.75
WX = 1.75
The amount to be invested in stock Y = -0.75 x $106,000
= -$79,500
The Beta of the portfolio could be calculated using the formula:
BP = BX(WX) + BY(WY)
BP = 1.14(1.75) + 0.84(-0.75)
BP = 1.995 - 0.63
BP = 1.365
Explanation: The expected return of the portfolio is equal to expected return of stock X multiplied by the weight of stock X plus the expected return of stock Y multiplied by weight of security Y. The weight of security Y is -0.75. The weight of security X is equal to 1 - weight of security Y. Thus, the weight of security X is 1.75 since the weight of security Y is negative. The amount to be invested in security Y is -0.75 x $106,000, which is equal to -$79,500
The Beta of the portfolio equals Beta of stock X multiplied by weight of stock X plus the Beta of stock Y multiplied by weight of stock Y. The weights of the two stocks have been obtained earlier. Therefore, the Beta of the portfolio is 1.365.
See there are pros and cons if you answer on the first ring people will think your always depentent on your phone and always have it with you
After the fourth ring people will just hang up and think you wont answer
If you never answer then people will just never call you
So the second ring is the best choice
Answer: $12477.27
Explanation:
The formula to find the compound amount after t years (compounded semiannually) :-

Given : Principal amount : P = $ 8,000
Rate of interest : 
Time : 9 years
Now, 

The final amount in the account will be $12477.27
Answer:
Cash Received during the period = $155200
Explanation:
The amount of receipts or cash received during the period can be calculated using the following formula.
Cash Received = Closing Balance + Cash Disbursements - Opening Balance
Cash Received = 67200 + 128000 - 40000
Cash Received = $155200
So, the cash receipts during the period are $155200.
Answer:
The correct option is D
Explanation:
External cost is the form of an expense which occur while consuming or producing the goods and services that imposes the cost or expense ( with negative effect) on the third party.
If there are the external costs while consuming the good, then the social costs would be greater than the private cost.
So, the external cost is defined as the cost that is imposed without any compensation on someone other than the person who cause or incur it.