Answer:
4hours
Step-by-step explanation:
1hour =85+85
=170km/h
time= distance÷
speed=170km/h
680÷170=time
=4h
6.00
6.75
I'm terrible at math
I hope that that helps but I don't think
141.73g
I'd have to say it's A. Please don't blame me if I'm wrong. :)