Read the poem by Langston Hughes (1926). I, too, sing America.

I am the darker brother.
They send me to eat in the kitchen
When company comes,
But I laugh,
And eat well,
And grow strong.
Tomorrow,
I’ll be at the table
When company comes.

Nobody’ll dare
Say to me,
"Eat in the kitchen,”
Then.
Besides,
They’ll see how beautiful I am
And be ashamed—
I, too, am America.

–"I, Too,”
Langston Hughes

In this poem, to whom is "I” referring, and to whom is "they” referring, metaphorically?

“I” refers to a child, and “they” refers to parents.
“I” refers to a young man, and “they” refers to a rich family.
“I” refers to African Americans, and “they” refers to white Americans.
“I” refers to African Americans, and “they” refers to the American government.
Mark this and return

“I” refers to African Americans, and “they” refers to the white Americans.

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".

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: