Which of the following is true about the great wall of china? select one: a. while it was actually built over many dynasties, to keep out invaders, the greatest construction began during the qin dynasty. b. along with the great pyramids and the colossus of rhoades, the great wall was considered by europeans to be one of the “seven wonders” of the ancient world. c. the wall was built to keep european invaders out during china’s feudal times. d. the wall saw its greatest expansion during the xia and shang dynasties.

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.

part a. there were 250 teenagers surveyed (100% of tenagers = 250)therefore 1 % = 250/100 = 2.5 76% = 1% x 76 = 2.5 x 76 = 190 teenagers of the 250 surveyed liked burgerspart b: jane surveyed 25% (which is equal to 50 teenagers, i.e. a quarter of the teenagers surveyed is 50) to get 100% we simply get 4 quarters, i.e. multiply 50 by 4 = 200 teenagers were surveyed by jane. part c: it is impossible to give an example where a percentage is greater than 100%, since, by definition , percentage means "per 100".