Write each phrase as a unit rate.

  1. 20 mi in 5 h

a)4 mi/h

b)20 mi/5 h

c)5 mi/hr

d)100 mi/hr

  1. 42 gal in 7 min

a)6 gal/min

b)7 gal/min

c)42 gal/7 min

d)35 gal/min

  1. A fall of 144 ft in 3 s

a)0.02 ft/s

b)144 ft/3 s

c)141 ft/s

d)48 ft/s ...?