Economists use a supply curve to
A. show the law of supply in chart form
B. show the law of supply in graph form
C. show the law of supply in table form
D. show the law of supply in a written description

Iam pretty sure it is c. 2000 bce

Its in the national history museum and you can't se the original because its locked away in a vault 

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen

Poverty can be changed through new jobs , raising the minimum wage , and support pay equality.