Describe the business venture and what kind of algebra or other calculations and formulas might someone in that endeavor. also include ways in which the business might operate differently with those tools than without them.

answer: c.   like someone who knows how to behave in public

i love to sleep it's the best

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.