Today I saw a bus stop advertisement that read $5 pesos hacen la diferencia. Is this proper form? In English, that would be incorrect and redundant. "$5 dollars" would read as "5 dollars ...
Should numbers above 15 be spelled as a single word (diecisiete, veintidos, etc.) or multiple words (diez y siete, veinte y dos, etc). Does the Real Academia Española have a official opinion on the ...