Mathematics, 12.10.2019 23:20 maddylucas

The johnson family is going on a family trip to new york,270 miles away. they drive for 3 hours, then stop for lunch, then drive for another 1 1/2 hours before arriving. what is their average speed?

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The johnson family is going on a family trip to new york,270 miles away. they drive for 3 hours, the...