Answer:
258.75km
Step-by-step explanation:
345/4=86.25
Can travel 86.25km an hour
86.25*3=258.75
Therefore it can travel 258.75 in 3 hours
I think your answer is y = mx+b.
One third of 15 is 5 because 15/3=5. There are 60 minutes in an hour and Yana slept for 5, so 5*60= 300. Yana slept for 300 minutes.