These questions ooze rigor!
Here students work through real life problems to identify equivalent ratios, compare ratios, apply conversions and graph ratios. There's not much on rate here, but can be used as a strategy to solve some of the problems. So this is a great end of unit extension or application, or to spiral back to. Definitely a go for the higher level learners!
Here you get 7 stations and 7 worked out solutions.
Use as stations or even assign them out. Perhaps groups? There's really no limit here.