I think that is 45 am not sure but i think that is the anwer
Answer:
D. The set that all points in a plane equidistant from a common point.
Step-by-step explanation:
If he once traveled 36 hours and he takes 6 hour trips you do
10x3=30 so every six hours he takes 30 minute brakes then 36 divided by 6 equlas 6 you would do 30x6= the answer!!! (Btw i do 6th grade math)