成宝贝 7 If Mathew and Darren walk in the opposite directions from the same place etu same time, they will be 960 meters apart after 8 minutes. If they walk in the com direction, Darren will be ahead of...

Do 7a and 7b plz

Extracted text: 成宝贝 7 If Mathew and Darren walk in the opposite directions from the same place etu same time, they will be 960 meters apart after 8 minutes. If they walk in the com direction, Darren will be ahead of Mathew by 70 meters after 5 minutes. How fast de KIDA NO17 each of the boys walk? (***) At 8am, the train A leaves the station towards another city at a speed of 150km per nour. At 8:30am, another train B departs towards the same city at a speed of 180km per hour non-stop. At 9am, train A reached a small town where it stopped for 10 minutes and then continued at 150km per hour. At what fime does train B catch train A? (Hint: try to draw the positions of the two trains at 8:30am, at 9am, and at 9:10am.) (***) SidaLion