The word finite means "having definite or definable limits." give examples of sentences that use the word finite. explain what a finite sequence might refer to

This seems like an easy yet complex task to do but I'll try to help you out. Let's see... sentences that use the word "Finite". 

Examples:

-"There is a finite number of baseballs, beanbags, and balloons."
-"This idea that there are a finite number of jobs misses the point entirely of what makes a job."

To find examples such as these you could also go to: yourdictionary.com

Now if you ask for my opinion in what a finite sequence might refer to.. I couldn't tell you in my direct words since I don't understand this concept well just the definition (An infinite sequence is a list or string of discrete objects, usually numbers, that can be paired off one-to-one with the set of positive integers) Whatis.techtarget.com. If I were you I'd explain all this in my own words. 

I think this is a K12 question and finite sequence is used most in Mathematics so I suppose that this belongs more in the Mathematics area. However I say this only as a suggestion.