Correct Comma Usage

Which of the following is the best way to punctuate this sentence?

• I was tired because I worked all day.

• I was tired, because I worked all day.

When I see a FANBOYS word, I have to determine whether the FANBOYS word is joining two complete sentences or joining together three or more items in a series.  If it is performing either of those jobs, I place a comma.

• True 

• False

Which is a good way to combine these clauses?
Although the oceans appear to be separated.   They are actually joined together.

• Correct as is.

• ... separated; they ...

• ... separated, they ...

• ... separated, and they

Which has correct comma placement?

• Yes Billy, is good at dancing.

• Yes, Billy is good at dancing.

• Yes Billy is good at dancing.

• Yes Billy is good, at dancing.

Fix this sentence!
Let's eat grandma! 

• Correct

• Let's eat, grandma!

• Let's, eat grandma! 

Which sentence uses the comma correctly?

• It's a beautiful day, outside isn't it?

• It's a, beautiful day outside isn't it?

• It's a, beautiful day outside, isn't it?

• It's a beautiful day outside, isn't it?

Which sentence uses the comma correctly?

• You're,not sick are you?

• You're not sick, are you?

• You're not sick are, you?

• You're, not, sick, are you?

Comma placement?
Correct or incorrect
Yes, I want to go to the movies with you.

• Correct

• Incorrect

Comma placement?
Correct or incorrect
Thank you, Rachel, for the coffee.

• Correct 

• Incorrect

Which sentence uses commas correctly?

• A) My brother who is a doctor lives in New York.

• B) My brother, who is a doctor, lives in New York.

• C) My brother who is a doctor, lives in New York.

• D) My brother, who is a doctor lives in New York.