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this is a formal essay, I mean using formal english, but I think these sentences are so simple.I need help please!

1#Latinos made up the upper and lower class in the U.S society.
2#In spite of the fact that the government has been closed many educational programs for Latinos by lack of economic resources, Latinos are interested in learning English and going to college.
3#Along with being stereotyped uneducated, Latinos are considered poor people.
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Hello Pilita, hello Temico

I believe it's common in the US to use a comma after each item in a series, e.g.

1. 'The street vendor sold watches, necklaces, and earrings.'

You'll also find this usage in books printed by some UK presses, e.g. Oxford University Press. It's the older method, and is known as the 'serial' or 'Oxford' comma.

This method:

2. 'The street vendor sold watches, necklaces and earrings.'

is more common in the UK, but is a relatively recent development.

MrP
Comments  
These are my corrections, though I admit, I could still be wrong.

THESE SENTENCES ARE FROM a formal essay, I mean using formal English, AND I think THAT these sentences are NOT so simple. I need YOUR help please!

1#Latinos MAKE up the upper and lower class in U.S society.
2# DESPITE the fact that the government has closed many educational programs for Latinos FOR lack of economic resources, Latinos are interested in learning English and going to college.
3#BESIDES being stereotyped AS uneducated, Latinos are ALSO considered AS poor people.
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Thank you Temico for your suggestions!!!.I am getting confused using comma between items in a series. I got these examples from a website:

Use commas to separate items in a series.

1. The street vendor sold watches,necklaces,and earrings.
2.The exercise instructor told us to inhale,exhale,and relax.
3.The pitcher adjusted his cap,pawed the ground,and peered over his shoulder.
Which website did you get these sentences from, may I ask?

To my knowledge, sentence 1. should be either:-

i) The street vendor sold watches, necklaces and earrings.
ii) The street vendor sold watches, necklaces, earrings, etc.,....

Sentence 2. should be:-
"The exercise instructor told us to inhale, exhale, relax, repeatedly after every...... e.g. 3 minutes.

Sentence 3 is correct because it is actually a compound sentence made up 3 individual sentences:-

i) The pitcher adjust his cap.
ii) The pitcher pawed the ground.
iii) The pitcher peered over his shoulder.

Joining all three above sentences together with the conjunction "and", we get:-

"The pitcher adjust his cap and the pitcher pawed the ground and the pitcher peered over his shoulder." = "The pitcher adjusted his cap, pawed the ground, and peered over his shoulder."

 MrPedantic's reply was promoted to an answer.
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