The marker should be 26400 feet away from the starting point
Here's my step-by-step explanation:
We're just gonna factor.
If your teacher has spoken of FOIL, then he/she has probably said that it means First Outer Inner Last and that it helps with distributing problems like these.
Right, so let's get to it.

Can you see the FOIL method being spread out here? Let's keep going.

Hope this helps, and let me know if I made a mistake! ^_^
Second it’s 7 minutes and 8 sec long
The answer would have to be 3+2x
A. X^4. Hope this helped!