The document mentions American companies like eBay, Harvard Business School, and the Bill and Melinda Gates Foundation. It also references currencies like euros, riyals, and yen. In the US, wealthy individuals traditionally donate money to hospitals, libraries, and universities to help address global issues like poverty and the environment.

1. 3)
1) The Americancompaniesmentionedare EBay, HarvardbusinessSchool andBill andMelinda
Gates Foundation.
2) Mentionsthe euros,riyalsandyen.
$31 billion

2. 3) In the USA, itis traditional forthe richto give moneytohospitals,librariesanduniversities.
4) Theyuse time,social connectionsandskillstohelpfindsolutionstosome of the world's
problems,suchaspovertyandthe environment.