The introduction of _________ led directly to the __________ of goods, because of this, goods could be made and sold at more _____ prices

Answer 1

mass production; lower prices; affordable

Answer 2

The introduction of _________
cotton gin
labor unions
interchangeable parts

Answer 3

The introduction of interchangeable parts led directly to the mass production of goods, because of this, goods could be made and sold at more affordable prices.