How did new technologies change business in the 1920s? check all that apply. new taxes were introduced. new ways to operate equipment were developed. new products were invented. more efficient ways to manufacture goods were designed. manufacturing became more expensive.

New ways to operate equipment were developed.

New products were invented.

More efficient ways to manufacture goods were designed.

Explanation:

New ways to operate equipment were developed: thanks to the electrification of the industry and mechanization of the production process that was further developed during the 1920s, the efficiency of the industry was increased in a great way.

New products were invented: during this decade, many industrial products were invented, most of them linked to the extension of the use of electricity.

More efficient ways to manufacture goods were designed: Taylorism and Fordism were methodical systems of industrial production that increased the productivity of factories, mainly focusing on assembly lines.