Match the improvement with its influence on distribution and travel. match the items in the left column to the items in the right column.

1. crushed rock roads
2. steam locomotives
3. canals
4. steamboats

a. made land travel quicker, safer, more enjoyable
b. made distribution cheaper and easier, eliminated delays between water routes
c. quickened distribution, lowered transportation costs on water
d. made distribution quicker, cheaper, and easier on land.

The answers are:

1. crushed rock roads -- a) made land travel quicker, safer, more enjoyable

2. steam locomotives -- d) made distribution quicker, cheaper, and easier on land.

3. canals --b) made distribution cheaper and easier, eliminated delays between water routes

4. steamboats --c) quickened distribution, lowered transportation costs on water

Explanation:

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".

d. hip hop

it was originated in the 70s while the harlem renaissance occured in the 1920s