Do you want a guarantee for your new phone ? Rate:
exactly what makes the sentence more formal or informal?​

I'd say the sentence is more to the formal side. This is because it isn't a causal, "Hey there, would you want a guarantee for your new phone?", or a, "Yo, dude, want a guarantee for your new phone?" This sentence is what you'd say respectfully to a stranger you might not know. Hope this helps! Please mark as Brainliest if you could, that would be appreciated. :)

the best practice

1. keep your workspace clean

2. wash your hands

3. seperate and clean chemicals and equipment

4.   use microfiber cleaning utensils

5. clean and sanitize all work surfaces

hope this !

keep learning.

explanation:

i guess