. From June 2008 oil was at a high of $144.78 per barrel. During the period from April 2011 until July of 2014, the price of oil hovered between about $115.32 per barrel and about $105.22 a barrel. Then, starting in August 2014 oil began a precipitous fall in price from the $105.22 to $33.62 a barrel in January 2016. Although the U. S. has great amounts of oil that can be brought out of the ground by “fracking,” by the beginning of 2016 many of the workers in the U. S. oil exploration and drilling industry were out of work and tremendous amounts of oil exploration equipment was sitting in the equivalent of “used car lots” to be sold. a. Which of the economic principles best describes this situation? b. Using the principle you have selected, describe the chain of links that best explains how the falling international oil prices caused U. S. workers to be laid off and available U. S. oil to be left in the ground.

Suppose you win a small lottery and have the choice of two ways to be paid: you can accept the money in a lump sum or in a series of payments over time. if you pick the lump sum, you get $2,950 today. if you pick payments over time, you get three payments: $1,000 today, $1,000 1 year from today, and $1,000 2 years from today. 1) at an interest rate of 6% per year, the winner would be better off accepting the (lump sum / payments over time), since it has the greater present value. 2) at an interest rate of 9% per year, the winner would be better off accepting the (lump sum / payments over time), since it has the greater present value. 3) years after you win the lottery, a friend in another country calls to ask your advice. by wild coincidence, she has just won another lottery with the same payout schemes. she must make a quick decision about whether to collect her money under the lump sum or the payments over time. what is the best advice to give your friend? a) the lump sum is always better. b) the payments over time are always better. c) it will depend on the interest rate; advise her to get a calculator. d) none of these answers is good advice.

Awork system has five stations that have process times of 5, 9, 4, 9, and 8. what is the throughput time of the system? a. 7b. 4c. 18d. 35e. 9

What percentage of hard rock's profit is derived from retail shop sales?