What is the spanish word for thirty

Lavar la ropa b. limpiar la casa c. lavar los platos d. barrer el piso

Which one of the following is the correct rhyme to keep in mind when using the spanish counterparts to this, that, those and these? a: “that” and “those” both have s’s, “this” and “these” don’t b: “that” and “those” both have t’s, “this” and “these” don’t c: “this” and “these” both have s’s, “that” and “those” don’t d: “this” and “these” both have t’s, “that” and “those” don’t

Si tienes que pagar, y no tienes efectivo, puedes usar a. la guía turística c. el albergue juvenil b. los cheques de viajero d. el taxista