Answer:
A. Landscape lawns produce positive externality.
B. Sports vehicle generates a positive externality
C. Walk to work creates positive externality.
D. Cigarettes create a negative externality.
Explanation:
Positive externality occurs when society gets benefit from a persons act. Susan has created lawns near her house and there are beautiful flowers in the lawn. This will be relaxing for those who pass near by the lawns. There will be fresh air coming from the lawn and society will look pleasant.
Negative externality is one in which society is harmed by the act of a person. This happens when Anita smokes at a bus stop. There are other travelers who will be present at the bus stop might be harmed from the smoke which arises from the cigarette.
The first would would be $5,500 and then the last space would be $5,250
Answer:
B) $2,850
Explanation:
1: Find the discount: $3,000*5% = $150
2: Subtract the discount: $3,000 - $150 = $2,850
Answer:
(a) 
(b) 
(c) X=4.975 percent
Explanation:
(a) Find the z-value that corresponds to 5.40 percent
.


Hence the net interest margin of 5.40 percent is 2.5 standard deviation above the mean.
The area to the left of 2.5 from the standard normal distribution table is 0.9938.The probability that a randomly selected U.S. bank will have a net interest margin that exceeds 5.40 percent is 1-0.9938=0.0062
(b) The z-value that corresponds to 4.40 percent is
The net interest margin of 4.40 percent is 0.5 standard deviation above the mean.
Using the normal distribution table, the area under the curve to the left of 0.5 is 0.6915
Therefore the probability that a randomly selected U.S. bank will have a net interest margin less than 4.40 percent is 0.6915
(c) The z-value that corresponds to 95% which is 1.65
We substitute the 1.65 into the formula and solve for X.




A bank that wants its net interest margin to be less than the net interest margins of 95 percent of all U.S. banks should set its net interest margin to 4.975 percent.
2, 3, and 4, make the most sense to me. I'm not completely sure about 4, but I'm confident about the other two :)