Answer: 61 Hours
Step-by-step explanation: There are 365 days in a year, so you brush your teeth 3,650 minutes per year (365 days times 10 minutes aka 365×10=3650). Now convert those minutes to hours by dividing it by 60 since there are 60 minutes per hour. 3,650/60 = 60.83333333333 aka 61 hours (as the question said "about how many hours, it wants you to round)