How to get a perimeter of 200

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.

Which statement is true about the graphs of the two line y=-8x-5/4 and y=1/8x+4/5

Answer asap a family of two adults and three children went to a water park. admission to the water park costs $18 per person. nora used the expression 12(18)+3(18) to model the total cost for the family, and alex used the expression 5(18) which property of operations makes both of their expressions correct?