Jake walked to his friend's house. He stayed at his friend's house and then he walked back home.
Here is Jake's travel graph.
| Time | Distance from home (miles) |
|---|---|
| 13 30 | 0 |
| 14 15 | 3 |
| 15 00 | 3 |
| 15 30 | 0 |
A travel graph showing distance from home (miles) on the y-axis (0 to 5) against time on the x-axis (13 30 to 16 00). The graph consists of three straight line segments: from (13 30, 0) to (14 15, 3), from (14 15, 3) to (15 00, 3), and from (15 00, 3) to (15 30, 0). The y-axis has major grid lines every 1 unit and minor grid lines every 0.2 units. The x-axis has major grid lines every 30 minutes and minor grid lines every 15 minutes.
For how many minutes did Jake stay at his friend's house?
What was Jake's average speed on his journey to his friend's house?
