A family, planning a weekend trip, decides to spend not more than a total of 8 hours driving. By leaving earl?

A family, planning a weekend trip, decides to spend not 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 can average only 30 miles per hour on the return trip. What is the farthest distance from home they can plan to go?|||240 miles , since you want the miles with the least amount you can drive in that 8 hour period/