Answer: Blaise Pascal
Explanation: For years historians considered the inventor of the first mechanical calculator to be the French mathematician, philosopher, and apologist Blaise Pascal (1623-1662). To assist his father's work as a tax collector, the 19-year-old Pascal created a mechanical device that performed simple addition and subtraction.
ANSWER: C
(Empire, kingdom, republic.)
All variations of their democracy.
Technology affected American lifestyles in two main ways. First, it gave Americans more leisure time. ... The invention of radio and the boom in movies, combined with the growing availability of cars, allowed Americans to pursue a lifestyle that was much more centered around fun than it ever had been before
The Native Americans had to move because they took over land.