Answer:
it is usually 15 to 64 years
Independent agencies such as the CIA or FCC operate outside of the President's immediate sphere of influence, but still are under executive scrutiny, therefore the answer is that they "cause the executive branch to influence many aspects of life in the United States."
Car pooling...? I can't be sure because I wasn't given choices.
The correct answer is the first one: States are represented equally in the Senate but by population in the House of reps
