Keyonnn get a life and stop deleting everyone questions

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

Will give a: 122 b: 90 c: 48 d: 180

Solve 17= -13 - 8x and show your work.