Conversion:
1 hour=60 minutes
1 day=24 hours
1 minute=60 seconds
Convert:
1)[tex]9 hours(\frac{60 minutes}{1 hour})=540 minutes[/tex]
2)[tex]3 days(\frac{24 hours}{1 day})=72 hours[/tex]
3)[tex]780 seconds(\frac{1 minute}{60 seconds})=13 minutes[/tex]
4)[tex]540 minutes(\frac{1 hour}{60 minutes})=9 hours[/tex]
5)[tex]264 hours(\frac{1 day}{24 hours})=11 days[/tex]
Hope this helps =)
