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on a coordinate grid, point v is at (6, −8) and point s is at (6, 8). the distance (in units) between points v and s is (input only whole numbers, such as 2.)

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?