Who want farther=you skateboard at a rate of 7 miles per hour for 15 minutes, or your friend who ran at a rate of 6 mile per hour for 20 min? answer this.

The skate border because he travels farther in less time

It seems like a lot of movies

If i think this is what your asking, he should look at the grams or pounds/ounces and compare the to their cost then max can identify which one is proportional and which is not ( i think xd)