Pack your bags, Math Spy! You are headed to the Isle of Pi for your next mission. You will be travelling on three flights and through several time zones to get there.
Your first flight at Sea-Tac leaves at 10:10 am. It takes an hour to get there from your house and I want you to be at the airport an hour and a half ahead of the flight. What time do you need to leave your house?
a. 7:40 am
b. 7:10 am
c. 6:40 am