These two quantities have opposite signs. which will be positive and which will be negative

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∣∣

If f(x)= 3x+6 which of the following is the inverse of f(x)

In the diagram, gef and hef are congruent. what is the value of x