Three friends took a trip to the mountains last year. each friend took a different route on their trip. they compared their average speeds, but each friend represented the data in a different format.

their data is given in the table below, where x represents hours and y represents miles traveled.

don's trip janie's trip paul's trip
y = 32x
hours miles traveled
0.5 20
3.5 140
5 200
find the constant of proportionality, or unit rate, for each friend. then, put each name, with the correct unit rate, in order from least to greatest unit rate.