What was true of both Richard Nixon and Ronald Reagan?

Business and industries in the 1920's most closely followed the buying demands of a) the government b)farmers c)consumers d)manufactures

    which of the following was anecological  result of european exploration from 1400 to 1800?   a.  increased trade with east asia      b.  the spread of epidemic diseases      c.  expansion of english territory      d.  the spread of christianity

In the supply-and-demand schedule shown above, the equilibrium price for cell phones is $25 $100 $200