Find the value of x. then find the measures of b and c

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.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Write the pair of fractions as a pair of fractions with a common denominator