Check my answers or . history will give 15 points to correct answer

ethnicity and race determined the boundaries of most urban residential districts.

to which term does this best fit?

a) social darwinism
b) social stratification
c) consumerism
d) the gilded age

im not sure if its a or b

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".

the exclusive possession or control of the supply or trade in a commodity or service.