PL HELPPP

4 ¼ divided by 2 ½

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∣∣

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

How do i do this? i don’t understand