Question

To convert 23,000 seconds into hours, which two ratios could you multiply by?

Answer 1

1 second = 1 minute = 1 hour = 1 hour
60 seconds 60 minutes 3600 seconds
so
23,000 seconds * 1 = 1150 minutes * 1 = 115 hours or 19.16667 hours
60 3 60 6

Answer 2

the one that converts from seconds to minutes then fro mminutes to hours
aka

multiply by 1min/60sec then multiply by 1hr/60min

this leaves you with bout 6.38888 hours

C is the answer