Fifty usd is 50 dollars in US currency. Fifty usd is a shortened form for fifty US dollars.
Fifty dollars
Fifty dollars = pesos
fifty seven dollars. $57
fifty thousand dollars
Twenty nickels = a dollar, forty nickels = two dollars, eleven nickels = fifty-five cents, so your total is two dollars fifty-five cents.
50 dollars fifty dollars
One hundred ninety-eight billion, seven hundred fifty million dollars.
Niger
fifty dollars
fifty dollars
fifty dollars