Steel allowed for the creation of new inventions that allowed new york city to grow “up and out”. what were these two new inventions? a skyscrapers and suspension bridges b broad boulevards and sewer systems c underground railways and electric trams d gas powered streetlights and tree lined streets

A

Explanation:

There are many skyscrapers and suspension bridges in New York

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".