You use preterite to describe an action that took place and was fully done, Ex. José entro a la habitación, you can see John went into the room, he completed the action. On the other hand, imperfect tense doesn't specificate if the action was completed, Ex. José entraba a la habitación, it doesn't tell us if José fully entered the room.
Answer: 20.5714285714 packets (21 packets rounded)
Explanation: (319/7)-25
What do you recommend for dinner
<span>d. del colegio
</span><span>a. ingeniera
</span>d. salario