Chemistry, 14.01.2021 18:00 nehemiahj8

during a 2 hour trip, a family is able to travel 140 kilometers. what is the average speed of the family during this portion of this trip?

during a 2 hour trip,a family is able to travel 140 kilometers. what is the average speed of the fa

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during a 2 hour trip, a family is able to travel 140 kilometers. what is the average speed of the fa...