Help me im almost done

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∣∣

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

How do you write 600 as a product of its prime factors (index! )