Need this for a test

Math question.. plz me .. best answer all

You use technology ans find a sum of 6.712e-8. write this sum in standard form

Ken leaves work 20 minutes late. he decides to make up time by taking the toll road instead of side streets. he can travel three times faster by taking the toll road. create an equation to represent his total travel time, including wait time, where x is the number of minutes the drive was expected to take