Find the area of a figure

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

Using elimination, what is -4x+2y=-12 4x+8y=-24

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a