Bought these in a mystery box at Coin Club auction this month for a dollar. I have very few world coins, but I like the additions. I know no value, but totally different than 99.9% of my collection.
If the Pesos are "new" after the devaluation in 1994, a peso is around 5 cents. The 50 Peso is $2.69 and the 100 Peso is $5.38. If they are old, then they only have collector value.
Both notes are dated 2012. The 1 Peso coin is dated 2015. Not bad for taking a chance on a mystery box for a Buck.
Now, in the US, you can't cash in foreign coins. Euros, Canadian, Mexican. But there are places to cash in paper money at a small exchange rate. I go metal detecting and all these English pound coins and Euros are killing me, because there's no way to spend them, or cash them in.