Answer:
Ayer nosotros ahorramos 2.500 pesos.
Step-by-step explanation:
In this exercise, you have to complete the sentence with a verb in the correct form. The verb is ''ahorrar'' (infinitive form) because it is in the question. The answer is in the preterite tense, so the correct conjugation is ''ahorramos''.
The Spanish preterite tense is used when you want to talk about actions completed at some point in the past.