Which nomadic peoples had the most influence on eurasia throughout post classical times?

During the post era Most influence are the aristocrats and local provincial administrators, the typical pattern for relations between china and its neighbours during the post-tribute, but remain independent. The Ming Chinese naval expeditions of the early 15th century ended because they challenged Confucian values and typical expenditures

what are the choices?

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".