Answer:
$10.80
Explanation:
Given that:
A first-period efficient allocation cost = $10
The constant marginal extraction cost MEC for both periods = $2
The social discount rate (r) = 10%
∴
The efficient undiscounted market price for the 2nd period can be determined by using the formula:

The development of an internationally distributed
collection of multimedia files addressed using universal resource locators led
to the world-wide web (www).
Tim Berners-Lee, who was an English scientist invented
the World Wide Web (WWW) in 1989. The global information medium,
accessed by the use of internet, where documents and other web resources are recognized
and it is also refers to the collection of public websites. Web and Internet
are different terms, they are mostly misunderstood.
Answer:
n = ㏒ P ÷ ㏒ (1.08)
Explanation:
Compound interest rate
A = P × 
where
P = principal amount (the initial amount you borrow or deposit)
r = annual rate of interest (as a decimal)
A = amount of money accumulated after n years, including interest.
n = number of years
Since we want the principle amount to double i.e., A = 2P
put this in above equation
2P = P × 
divide both sides by P, we get
P = 
put r = 0.08
P = 
P = 
Taking log on both sides
㏒ P =㏒ 
㏒ P = n ㏒ (1.08)
n = ㏒ P ÷ ㏒ (1.08)