Learn Spanish (Latin America): ¿Cuántos pesos pagan ustedes hoy?

The word for "how much" or "how many" has to match the noun it describes in both gender (masculine/feminine) and number (singular/plural). Because the noun pesos is masculine and plural, we must use the masculine plural form: cuántos.

Why does the verb pagan come before the subject ustedes?

In Spanish questions, it is very common to swap the normal order of the subject (ustedes) and the verb (pagan). Putting the action verb right after the question phrase sounds the most natural to native speakers.

Why does this sentence use the verb form pagan for "you all"?

In Latin America, ustedes is the standard word for "you all". Even though it means "you", it always takes the exact same verb endings as "they" (ellos or ellas). Since pagar (to pay) is an -ar verb, we use the "they" ending -an to make pagan.

Why is there an accent mark on the 'a' in cuántos?

In Spanish, question words always get a written accent mark. This rule applies to words like qué, cómo, dónde, and all forms of cuánto whenever they are used to ask a direct or indirect question.