How much is $20 US in Africa?

Excuse me, but could you please clarify the question? The value of $20 USD in Africa isn't a straightforward answer, as the continent of Africa comprises numerous countries with varying currencies and exchange rates. Additionally, the value of the US dollar can fluctuate against these various African currencies due to market forces. So, could you specify which African country or currency you're interested in converting $20 USD to? That way, I can provide a more accurate and relevant response.