Answer:
B. Wisconsin gains 200, Illinois gains 300
Explanation:
Assuming that one state cleaning the lake does not interfere with the costs and social benefits of the other state (events are independent), Wisconsin will incur 1,200 in costs and receive 1,100 in benefits from its own cleaning and 300 from Illinois' cleaning. Illinois will incur costs of 900 and receive 600 in benefits from its own cleaning and 400 from Wisconsin's cleaning.
The payoff for each state is:

Therefore, Wisconsin gains 200, Illinois gains 300.
The MR = MC rule C. applies only to pure monopoly.
<h3>What is monopoly?</h3>
It should be noted that monopoly simply means the only seller of a good to service in the market.
In this case, the MR = MC rule applies only to pure monopoly.
In conclusion, the correct option is C.
Learn more about monopoly on:
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<span>If the Fed expands the money supply by $1
trillion, the money market will be (letter C.) the equilibrium interest rate
will fall, and more money will exchanged in equilibrium. It is because people
will have more money to spend. Some would choose to use this money to buy goods
and services while other opt to put their money in banks which may lead to
lower interest rates to persuade people in borrowing. </span>
Answer:
(D) $71,446
Explanation:
we will calcualte the present value for an 11 payments annuity-due (there is eleven payment of 10,000 if we count the one at purchase date) which couta is 10,000 discounted at 10%
C 10,000
time 11
rate 0.1
PV $71,445.6711
rounding to the nearest dollars: 71,446