How do you respond to necesitas la tienda y el saco de dormir in spanish

Answer 1

Was it a question asked of you? = "Necesitas la tienda y el saco de dormir? (Do you need the tent and the sleeping bag?) Answering questions is often difficult for students at first. Here is what I suggest you do.
1. look at the Spanish
2. translate into English (I did the first 2 steps for you)
3. Answer FIRST in English = Yes, I need OR No, I do not need...
4. Then try the Spanish. Sí, necesito...OR...No, no necesito
5. Now see if that answer will elicit that question.

Sra

Answer 2

¿Necesitas la tienda y el saco de dormir?
I guess this question is correct.
Sí, los necesito. Yes, I need them (as SraJMcGin said)