Pretty sure its C. Because if you look it up it says that it <span>illustrate the complex relationships among economic, social, and environmental issues </span>
Early 1800's. The Erie Canal was built in 1817
The answer is D, hope this helps.
The answer is B) one-third
Angles in a triangle add to 180 so
55 + 23 = 78 so 180 - 78 = 102 so the other angle in the triangle would be 102 degrees
