Answer:
African American soldiers
Explanation:
they served on the Western frontier
Rubbing is made by visitors to the US Vietnam Veterans Memorial. they use pencil and paper to copy the name of a family member or friend who died in the Vietnam War off of the wall. The rubbing forms some sort of souvenir. It takes place in Washington DC.
Answer:
I'd probably go for either A or C.
Explanation:
There was massive unemployment during the Industrial Period, and D would be completely incorrect. The mass production of factories and crammed living space resulted in a great amount of pollution - this is how London's 'The Great Smog' came about.
The battle of Santiago would be correct.
Answer:
Explanation:
x(y ÷3)^2; use x = 4, and y=9