Answer: Don't Listen to the other answers. The Washington Monument in D.C. is an Obelisk modeled after ancient Egyptian Monuments.
Explanation:
Answer:
America's rich and varied natural resources played a key role in the rise of big business. The nation's abundant water supply helped power the industrial machines. Forests provided timber for construction and wooden products. Miners took large quantities of coal and iron ore from the ground.
Explanation:
The answer is
A= 1800
B=3600
C=7200
We get this answer by solving the system of equations of
B= 2•A
C= 2• B
12600= A+B+C