Which of the following is a way that western expansion impacted the plains indians?
a.
expansion severely limited the buffalo population.
b.
expansion allowed the plains indians to be employed on the railroad.
c.
expansion severely depleted fresh water supplies.
d.
expansion provided more food for the plains indians.

A Expansion led to buffalo population drop

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".