Ryan drives $60$ miles into the city early in the morning when traffic is light. He averages $60$ miles per hour. On the way home he gets caught in commute traffic and only averages $30$ miles per hour.

1. What was the total distance Ryan traveled on his trip to and from the city?

   Hint (a):

   He went to the city and back.

2. How long did he spend driving?

   Hint (b):

   The time spent going $+$ the time spent returning.

3. What was his average speed for the combined trip to and from the city?

   Hint (c):

   $\text{average speed }=\frac{\text{total distance}}{\text{total time}}$