So I looked it up this Monday morning as I was trying to decide on my cardio plan and was shocked to see that I was running close to a 7.0 speed on the track already:
This website/chart states that a 0% incline on a 7.0 speed is the same as a 8:56 mile on the road. While I think it's certainly debatable to call the indoor track the same as "the road" it's still fairly close.
My brain was sure I couldn't run a whole mile a 7.0 speed yet. Shut up brain.