Generally, these are easy to figure out... but this one is really awkward.

As you can see, the speed is in km/h and the time is 25 min, and the graph itsself is very awkward :/

If anyone could explain to me how to get the distance, I would appreciate it.

The answers are 32.5 km and 78 km/h.

I had them down in class but I have no idea how my teacher did it and now the final examinations are only a day away.

Any help would be appreciated.