The purpose of quipu was to
a. teach kids to read
b. prevent tribal wars
c. keep records of trade
d. preserve incan heritage

Lots of points: economics: the is the dollar value of all final goods and services produced within a country’s borders within a given year. a. gross domestic product b. business cycle c. inflation rate d. net exports

The american public was excited by the invention of the railroad system. true false

In a communication, the media needs to be shared between devices