Hello There
WHAT WE KNOW
We know that there are 60 seconds in one minute
We know that it took Bob 55 minutes to clean the garage
HOW TO SOLVE
We multiply 60 by 55 because there are 60 seconds in 1 minute and he took 55 minutes to clean the garage.
Once we multiply, we get a product of 3300
Bob spent 3300 seconds cleaning the garage