Year Price
1908 $825
1927
$290
Use the chart to answer the question.
Which factor best accounts for the price change in the Model T automobile?
(1 point)
• low deman
• organized labor
• mass production
• wartime inflation
mass production
How did George Westinghouse contribute to railroad transportation?
(1 point)
• His invention of air brakes made railroad travel safer and faster.
• His development of the sleeping car made railroad travel much more comfortable.
• His invention of the steam engine made railroad travel faster and more affordable.
• His creation of a railroad network helped make railroad travel more efficient.