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A family planning a weekend trip deci...

A family planning a weekend trip decides to spend no more than a total of 8 hours driving. By leaving early in the morning, they can average 40 miles per hour on the  way to their destination. Due to the heavy Sunday traffic they average only 30 miles per hour on the return trip. What is the farthest distance from home the can plan to go? 120 miles or less Between 120 and 140 miles 140 miles Between 140 and160 miles

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