If you walk forward $5$ feet and then walk backward $5$ feet, you will end up exactly where you started. For each of the actions below, describe an action that will get you back where you started.

1. Walk up $10$ steps.

   Hint (a):

   Walking down steps is the opposite of walking up steps.

2. Earn $8$ dollars.

   Hint (b):

   To undo earning money, you need to spend money.

3. It gets $5$ degrees warmer.

   Answer (c):

   It gets $5$ degrees colder.

4. Lose $6$ dollars.

   Hint (d):

   If you lose money, you need to find or earn the same amount to get back where you started.

5. Travel south $3$ kilometers.

   Answer (e):

   Travel north $3$ kilometers.

6. Run backward $9$ steps.

   Answer (f):

   Run forward $9$ steps.