What is the difference in elasticity of supply in the short run versus the long run?

Problem page a medical equipment industry manufactures x-ray machines. the unit cost c (the cost in dollars to make each x-ray machine) depends on the number of machines made. if x machines are made, then the unit cost is given by the function =cx+−0.3x2126x31,935 . how many machines must be made to minimize the unit cost?

Adecision is made at the margin when each alternative considers

Nba all-star baron davis and his school friend, cash warren, premiered their first movie "made in america" at the sundance festival in january 2008. the movie, based on gang activity in south central los angeles, received good reviews.    source: the new york times, february 24, 2008         draw baron davis's ppf. label it ppfdavis. draw your own ppf. label it ppfmine.