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A billion solar mass black hole has a radius of only:
Commercial Letter
a written document used in business transactions, often to communicate formally between companies or organizations.
Cash Advance
A short-term loan or credit card feature allowing individuals to withdraw cash up to a certain limit, often subject to high interest rates and fees.
Exporter
A person, company, or country that sells goods or services to buyers in another country.
Open Account Agreement
A financial arrangement between two parties allowing for the buying and selling of goods and services on credit, without requiring prepayment.
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