Four friends ran a 5K to raise money for their school the graph shows their rate as a ratio of distance measured in kilometers and time in minutes based on the points shown names the person who ran 2 1/2 Km in 45mintues

To determine which person ran 2.5 km in 45 minutes, you would need to look at the ratio of distance to time for each friend on the graph in question.

Assuming the graph shows their performance, 2.5 km in 45 minutes can be expressed as a rate:

\[
\text{Rate} = \frac{\text{Distance}}{\text{Time}} = \frac{2.5 \text{ km}}{45 \text{ minutes}} \approx 0.0556 \text{ km/min}
\]

If you have the points on the graph corresponding to each friend's performance, you can find which one matches this rate. Without the specific graph, I'm unable to determine which friend ran 2.5 km in 45 minutes. You can check the points on the graph for each person’s distance and time and see which one corresponds to this rate.