Which industry that grew after the Civil War shaped and defined the characteristics of Texas from the 1860s to the 1900s? A: Manufacturing of Iron works
B: Ranching and cattle driving
C: Textiles and cotton farming
D: Fishing and Shipping ​

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".

this is a good question! i'll do some research and come back when i have the answer!