Mary left camp four hours after jane did. they traveled in opposite directions. mary drove at 48 km/h and jane drove at 72 km/h. how many hours after mary left were the two girls 1008 km apart

Ahealth-food producer has 250 samples of a new snack to distribute in the mall. the producer has to keep at least 50 samples for display in the health food for the product launch. how long will the samples last if consumers are taking the samples at a rate of 25 every hour