"2 hrs 25 min" is close to "2 hrs 30 min" which is near 2.5 hours (2 and a half hours), so mark the point 2.5 on the horizontal x axis number line. The value 2.5 is at the halfway point between 2 and 3. After marking 2.5 on the number line, draw a vertical line straight up until you hit the graph. Then draw a horizontal line toward the y axis to figure out the corresponding y coordinate. Have a look at the attached image for a visual of what I'm describing. After doing these steps, you should get to the answer 450