The BEST advice Tay can give him about his first purchase is A. Be prepared to pay back the original amount and additional interest.
This refers to the financial advice that is given to a person when he is about to embark on a business to guide him not to make wrong choices.
Hence, we can see that based on the fact that Dante wants to use credit to make his first purchase, it is important that he knows that he would repay the amount, plus an additional amount, known as interest.
Read more about business advice here:
https://brainly.com/question/24553900
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