Question

allison is running is running a race that is m miles long. She has already run 8 miles. Which expression shows how many miles allison has left to run.

Answer 1

We already know the total is m miles and she finished 8 miles. So the remaining miles would be
m - 8 miles

Answer 2

Hi!

So, we know that she has currently ran 8 miles. Now Allison has m miles left to run.

We want to find out how many miles she has left. So, if she currently has ran 8, and has m miles left, how do we find out what she has left to run?

Well, we'd subtract 8 from the total amount of miles left! So this would look like m - 8.

Hopefully, this helps! =)