Development of more railroad systems contributed
most to US westward expansion in the second half of the nineteenth century.
The correct answer between all the choices given is the second choice or
letter B. I am hoping that this answer has satisfied your query and it will be
able to help you in your endeavor, and if you would like, feel free to ask
another question.
Depends on the context. If you told more then I could help.
false
line g has an angle with the plane R
A plane is fully defined using a point on it and a line (vector) located on it
if there is a relation between line F and line G (perpendiculars for example) then answer could be true
