Convert to seconds 2.75 hours

Answer 1

There are 60 x 60 seconds in 1 hour = 3600 seconds

In 2 hours there are 7200 seconds

0.75 of an hour is 45 minutes.

There are 45 x 60 seconds in 0.75 hour = 2700 second

Add these together to get 9900 seconds in 2.75 hours