Help me with this chart.

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Need showing work for this problem 56.25 ×25.80

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge