Your subject is clearly not math.
What is YOUR answer to this question?
Which sentence uses a comma correctly?
A. She wanted to be an astronaut, after finishing school.
B. He would like to order the steak, and fries.
C. Thank you for returning my call, Mary.
D. Jim grabbed a bottle of ketchup, to go with his fries.
2 answers
We walked to the pool and ,went swimming.