Using this table, calculate the marginal cost of each of these quantities of bikes.
the first bike: $
the fourth bike: $
the sixth bike: $
the seventh bike: $

a historian who compares the expansion of political systems to the expansion of economic systems to the expansion of economic systems is organizing history by theme.

hope this : d

following type of cultural development caused people to want and buy new products on the market :

answer; professor;

it   would try making the   president who would the economy get out of depression picked