How did the one-child policy result in large numbers of undocumented chinese

Explanation:

If the parents had more than one child, they would hide the other child(ren), resulting in undocumented children

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

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".