Answer:
A theorem is called a postulate before it is proven, It is a statement also known as an axiom, which is known to be true without proof.
Answer:
She doesn't play the guitar but she plays the piano.
Explanation:
not play = does not play. "doesn't" is short for "does not"
Answer:
Thesis statements only work when you have some topic to work off of.
Here is how to write one.
State your topic. Your topic is the essential idea of your paper.
State your main idea about this topic.
Give a reason that supports your main idea.
Give another reason that supports your main idea.
Give one more reason that supports your main idea.
Include an opposing viewpoint to your main idea, if applicable.
Explanation:
"A thesis statement usually appears at the conclusion of the introductory paragraph of a paper. It offers a concise summary of the main point or claim of the essay, research paper, etc. It is usually expressed in one sentence, and the statement may be reiterated elsewhere"
Ooh, I know this one! Definitely "their". A pronoun is anything along the lines of he/him, she/her, they/their, xe/xis, it/its, etc. I hope I helped :)